157045765 has 8 divisors (see below), whose sum is σ = 188870040. Its totient is φ = 125359872.

The previous prime is 157045741. The next prime is 157045769. The reversal of 157045765 is 567540751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48427681 + 108618084 = 6959^2 + 10422^2 .

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 157045765 - 2¹⁵ = 157012997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157045769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32080 + ... + 36649.

It is an arithmetic number, because the mean of its divisors is an integer number (23608755).

Almost surely, 2^157045765 is an apocalyptic number.

It is an amenable number.

157045765 is a deficient number, since it is larger than the sum of its proper divisors (31824275).

157045765 is an equidigital number, since it uses as much as digits as its factorization.

157045765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69191.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 157045765 is about 12531.7901753899. The cubic root of 157045765 is about 539.5214839573.

The spelling of 157045765 in words is "one hundred fifty-seven million, forty-five thousand, seven hundred sixty-five".