157539515 has 32 divisors (see below), whose sum is σ = 221878656. Its totient is φ = 105154560.

The previous prime is 157539461. The next prime is 157539517. The reversal of 157539515 is 515935751.

It is not a de Polignac number, because 157539515 - 2¹² = 157535419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157539517) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 240929 + ... + 241581.

It is an arithmetic number, because the mean of its divisors is an integer number (6933708).

Almost surely, 2^157539515 is an apocalyptic number.

157539515 is a deficient number, since it is larger than the sum of its proper divisors (64339141).

157539515 is a wasteful number, since it uses less digits than its factorization.

157539515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its digits is 118125, while the sum is 41.

The square root of 157539515 is about 12551.4746145622. The cubic root of 157539515 is about 540.0863087925.

The spelling of 157539515 in words is "one hundred fifty-seven million, five hundred thirty-nine thousand, five hundred fifteen".