15152257 has 4 divisors (see below), whose sum is σ = 15254100. Its totient is φ = 15050416.

The previous prime is 15152233. The next prime is 15152261. The reversal of 15152257 is 75225151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75225151 = 109 ⋅690139.

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 12383361 = 1664^2 + 3519^2 .

It is a cyclic number.

It is not a de Polignac number, because 15152257 - 2²³ = 6763649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15152857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50698 + ... + 50995.

It is an arithmetic number, because the mean of its divisors is an integer number (3813525).

Almost surely, 2^15152257 is an apocalyptic number.

It is an amenable number.

15152257 is a deficient number, since it is larger than the sum of its proper divisors (101843).

15152257 is a wasteful number, since it uses less digits than its factorization.

15152257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101842.

The product of its digits is 3500, while the sum is 28.

The square root of 15152257 is about 3892.5900118045. The cubic root of 15152257 is about 247.4528400435.

The spelling of 15152257 in words is "fifteen million, one hundred fifty-two thousand, two hundred fifty-seven".