157620715 has 16 divisors (see below), whose sum is σ = 216430272. Its totient is φ = 107950464.

The previous prime is 157620707. The next prime is 157620731. The reversal of 157620715 is 517026751.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 157620715 - 2³ = 157620707 is a prime.

It is a super-2 number, since 2×157620715² = 49688579594222450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32637 + ... + 37153.

It is an arithmetic number, because the mean of its divisors is an integer number (13526892).

Almost surely, 2^157620715 is an apocalyptic number.

157620715 is a deficient number, since it is larger than the sum of its proper divisors (58809557).

157620715 is an equidigital number, since it uses as much as digits as its factorization.

157620715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 157620715 is about 12554.7088775487. The cubic root of 157620715 is about 540.1790844066.

The spelling of 157620715 in words is "one hundred fifty-seven million, six hundred twenty thousand, seven hundred fifteen".