157009653 has 6 divisors (see below), whose sum is σ = 226791734. Its totient is φ = 104673096.

The previous prime is 157009639. The next prime is 157009681. The reversal of 157009653 is 356900751.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 134513604 + 22496049 = 11598^2 + 4743^2 .

It is not a de Polignac number, because 157009653 - 2⁸ = 157009397 is a prime.

It is a super-2 number, since 2×157009653² = 49304062270360818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157009693) 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 5 ways as a sum of consecutive naturals, for example, 8722750 + ... + 8722767.

Almost surely, 2^157009653 is an apocalyptic number.

It is an amenable number.

157009653 is a deficient number, since it is larger than the sum of its proper divisors (69782081).

157009653 is a wasteful number, since it uses less digits than its factorization.

157009653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17445523 (or 17445520 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 157009653 is about 12530.3492768558. The cubic root of 157009653 is about 539.4801272369.

The spelling of 157009653 in words is "one hundred fifty-seven million, nine thousand, six hundred fifty-three".