157081555 has 8 divisors (see below), whose sum is σ = 189288000. Its totient is φ = 125138496.

The previous prime is 157081517. The next prime is 157081571. The reversal of 157081555 is 555180751.

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

It is a cyclic number.

It is not a de Polignac number, because 157081555 - 2¹⁷ = 156950483 is a prime.

It is a super-2 number, since 2×157081555² = 49349229842436050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64530 + ... + 66919.

It is an arithmetic number, because the mean of its divisors is an integer number (23661000).

Almost surely, 2^157081555 is an apocalyptic number.

157081555 is a deficient number, since it is larger than the sum of its proper divisors (32206445).

157081555 is a wasteful number, since it uses less digits than its factorization.

157081555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131693.

The product of its (nonzero) digits is 35000, while the sum is 37.

The square root of 157081555 is about 12533.2180624132. The cubic root of 157081555 is about 539.5624656572.

The spelling of 157081555 in words is "one hundred fifty-seven million, eighty-one thousand, five hundred fifty-five".