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134747141 = 490927449
BaseRepresentation
bin10000000100000…
…01010000000101
3100101112212022212
420002001100011
5233443402031
621212033205
73224221544
oct1002012005
9311485285
10134747141
116a074581
1239162805
1321bbb449
1413c7815b
15bc6a12b
hex8081405

134747141 has 4 divisors (see below), whose sum is σ = 134779500. Its totient is φ = 134714784.

The previous prime is 134747131. The next prime is 134747143. The reversal of 134747141 is 141747431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141747431 = 720249633.

It can be written as a sum of positive squares in 2 ways, for example, as 122567041 + 12180100 = 11071^2 + 3490^2 .

It is a cyclic number.

It is not a de Polignac number, because 134747141 - 26 = 134747077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134747098 and 134747107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134747143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816 + ... + 18633.

It is an arithmetic number, because the mean of its divisors is an integer number (33694875).

Almost surely, 2134747141 is an apocalyptic number.

It is an amenable number.

134747141 is a deficient number, since it is larger than the sum of its proper divisors (32359).

134747141 is an equidigital number, since it uses as much as digits as its factorization.

134747141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32358.

The product of its digits is 9408, while the sum is 32.

The square root of 134747141 is about 11608.0636197430. The cubic root of 134747141 is about 512.6723002664.

The spelling of 134747141 in words is "one hundred thirty-four million, seven hundred forty-seven thousand, one hundred forty-one".

Divisors: 1 4909 27449 134747141