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144605011 = 401360611
BaseRepresentation
bin10001001111001…
…11111101010011
3101002002200210011
420213213331103
5244004330021
622203215351
73404056645
oct1047477523
9332080704
10144605011
1174697981
1240517557
1323c603c5
14152c2895
15ca65de1
hex89e7f53

144605011 has 4 divisors (see below), whose sum is σ = 144966024. Its totient is φ = 144244000.

The previous prime is 144604969. The next prime is 144605017. The reversal of 144605011 is 110506441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144605011 - 213 = 144596819 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144605017) 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 3 ways as a sum of consecutive naturals, for example, 179905 + ... + 180706.

It is an arithmetic number, because the mean of its divisors is an integer number (36241506).

Almost surely, 2144605011 is an apocalyptic number.

144605011 is a deficient number, since it is larger than the sum of its proper divisors (361013).

144605011 is an equidigital number, since it uses as much as digits as its factorization.

144605011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361012.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 144605011 is about 12025.1823686795. The cubic root of 144605011 is about 524.8813167851.

The spelling of 144605011 in words is "one hundred forty-four million, six hundred five thousand, eleven".

Divisors: 1 401 360611 144605011