152128257 has 24 divisors (see below), whose sum is σ = 219012768. Its totient is φ = 93582720.

The previous prime is 152128247. The next prime is 152128267. The reversal of 152128257 is 752821251.

It is an interprime number because it is at equal distance from previous prime (152128247) and next prime (152128267).

It is not a de Polignac number, because 152128257 - 2⁸ = 152128001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152128217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 720882 + ... + 721092.

It is an arithmetic number, because the mean of its divisors is an integer number (9125532).

Almost surely, 2^152128257 is an apocalyptic number.

152128257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

152128257 is a deficient number, since it is larger than the sum of its proper divisors (66884511).

152128257 is an equidigital number, since it uses as much as digits as its factorization.

152128257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 298 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 152128257 is about 12334.0284173501. The cubic root of 152128257 is about 533.8303933298.

The spelling of 152128257 in words is "one hundred fifty-two million, one hundred twenty-eight thousand, two hundred fifty-seven".