157156390 has 32 divisors (see below), whose sum is σ = 291548160. Its totient is φ = 60948864.

The previous prime is 157156379. The next prime is 157156411. The reversal of 157156390 is 93651751.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 141156 + ... + 142264.

It is an arithmetic number, because the mean of its divisors is an integer number (9110880).

Almost surely, 2^157156390 is an apocalyptic number.

157156390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157156390 is a deficient number, since it is larger than the sum of its proper divisors (134391770).

157156390 is a wasteful number, since it uses less digits than its factorization.

157156390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 157156390 is about 12536.2031732100. The cubic root of 157156390 is about 539.6481361160.

The spelling of 157156390 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, three hundred ninety".