127157915 has 16 divisors (see below), whose sum is σ = 159694848. Its totient is φ = 97015776.

The previous prime is 127157881. The next prime is 127157917. The reversal of 127157915 is 519751721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 127157915 - 2²⁰ = 126109339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127157917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42602 + ... + 45488.

It is an arithmetic number, because the mean of its divisors is an integer number (9980928).

Almost surely, 2^127157915 is an apocalyptic number.

127157915 is a deficient number, since it is larger than the sum of its proper divisors (32536933).

127157915 is a wasteful number, since it uses less digits than its factorization.

127157915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298.

The product of its digits is 22050, while the sum is 38.

The square root of 127157915 is about 11276.4318381304. The cubic root of 127157915 is about 502.8608201972.

The spelling of 127157915 in words is "one hundred twenty-seven million, one hundred fifty-seven thousand, nine hundred fifteen".