157651538 has 8 divisors (see below), whose sum is σ = 257975280. Its totient is φ = 71659780.

The previous prime is 157651537. The next prime is 157651541. The reversal of 157651538 is 835156751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 157651495 and 157651504.

It is not an unprimeable number, because it can be changed into a prime (157651537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3582968 + ... + 3583011.

It is an arithmetic number, because the mean of its divisors is an integer number (32246910).

Almost surely, 2^157651538 is an apocalyptic number.

157651538 is a deficient number, since it is larger than the sum of its proper divisors (100323742).

157651538 is a wasteful number, since it uses less digits than its factorization.

157651538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165992.

The product of its digits is 126000, while the sum is 41.

The square root of 157651538 is about 12555.9363649232. The cubic root of 157651538 is about 540.2142930925.

The spelling of 157651538 in words is "one hundred fifty-seven million, six hundred fifty-one thousand, five hundred thirty-eight".