157992650 has 12 divisors (see below), whose sum is σ = 293866422. Its totient is φ = 63197040.

The previous prime is 157992643. The next prime is 157992671. The reversal of 157992650 is 56299751.

It is a happy number.

157992650 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 90801841 + 67190809 = 9529^2 + 8197^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1579877 + ... + 1579976.

Almost surely, 2^157992650 is an apocalyptic number.

157992650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157992650 is a deficient number, since it is larger than the sum of its proper divisors (135873772).

157992650 is a wasteful number, since it uses less digits than its factorization.

157992650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159865 (or 3159860 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 44.

The square root of 157992650 is about 12569.5127192744. The cubic root of 157992650 is about 540.6036345372.

The spelling of 157992650 in words is "one hundred fifty-seven million, nine hundred ninety-two thousand, six hundred fifty".