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136149743 = 6112491787
BaseRepresentation
bin10000001110101…
…11101011101111
3100111012010100002
420013113223233
5234323242433
621302054515
73242153012
oct1007275357
9314163302
10136149743
116a942354
123971a43b
132228c9a2
1414121379
15be459e8
hex81d7aef

136149743 has 8 divisors (see below), whose sum is σ = 138570000. Its totient is φ = 133735680.

The previous prime is 136149733. The next prime is 136149779. The reversal of 136149743 is 347941631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136149743 - 214 = 136133359 is a prime.

It is a super-4 number, since 4×1361497434 (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136149697 and 136149706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136149703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75296 + ... + 77082.

It is an arithmetic number, because the mean of its divisors is an integer number (17321250).

Almost surely, 2136149743 is an apocalyptic number.

136149743 is a deficient number, since it is larger than the sum of its proper divisors (2420257).

136149743 is a wasteful number, since it uses less digits than its factorization.

136149743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its digits is 54432, while the sum is 38.

The square root of 136149743 is about 11668.3222015849. The cubic root of 136149743 is about 514.4449897946. Note that the first 3 decimals are identical.

The spelling of 136149743 in words is "one hundred thirty-six million, one hundred forty-nine thousand, seven hundred forty-three".

Divisors: 1 61 1249 1787 76189 109007 2231963 136149743