157002315634 has 4 divisors (see below), whose sum is σ = 235503473454. Its totient is φ = 78501157816.

The previous prime is 157002315571. The next prime is 157002315671. The reversal of 157002315634 is 436513200751.

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

It can be written as a sum of positive squares in only one way, i.e., 148227310009 + 8775005625 = 385003^2 + 93675^2 .

It is a super-2 number, since 2×157002315634² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157002315593 and 157002315602.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 39250578907 + ... + 39250578910.

Almost surely, 2^157002315634 is an apocalyptic number.

157002315634 is a deficient number, since it is larger than the sum of its proper divisors (78501157820).

157002315634 is an equidigital number, since it uses as much as digits as its factorization.

157002315634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78501157819.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 157002315634 in words is "one hundred fifty-seven billion, two million, three hundred fifteen thousand, six hundred thirty-four".