157047690 has 16 divisors (see below), whose sum is σ = 376914528. Its totient is φ = 41879376.

The previous prime is 157047679. The next prime is 157047691. The reversal of 157047690 is 96740751.

157047690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157047690² = 49327953868672200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157047691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617432 + ... + 2617491.

It is an arithmetic number, because the mean of its divisors is an integer number (23557158).

Almost surely, 2^157047690 is an apocalyptic number.

157047690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157047690 is an abundant number, since it is smaller than the sum of its proper divisors (219866838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157047690 is a wasteful number, since it uses less digits than its factorization.

157047690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234933.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 157047690 is about 12531.8669798239. The cubic root of 157047690 is about 539.5236883564.

The spelling of 157047690 in words is "one hundred fifty-seven million, forty-seven thousand, six hundred ninety".