128492315 has 16 divisors (see below), whose sum is σ = 178452480. Its totient is φ = 86991840.

The previous prime is 128492293. The next prime is 128492327. The reversal of 128492315 is 513294821.

It is not a de Polignac number, because 128492315 - 2²⁰ = 127443739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 20471 + ... + 26000.

It is an arithmetic number, because the mean of its divisors is an integer number (11153280).

Almost surely, 2^128492315 is an apocalyptic number.

128492315 is a deficient number, since it is larger than the sum of its proper divisors (49960165).

128492315 is an equidigital number, since it uses as much as digits as its factorization.

128492315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46562.

The product of its digits is 17280, while the sum is 35.

The square root of 128492315 is about 11335.4450728677. The cubic root of 128492315 is about 504.6137162981.

The spelling of 128492315 in words is "one hundred twenty-eight million, four hundred ninety-two thousand, three hundred fifteen".