15375117 has 4 divisors (see below), whose sum is σ = 20500160. Its totient is φ = 10250076.

The previous prime is 15375071. The next prime is 15375127. The reversal of 15375117 is 71157351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71157351 = 3 ⋅23719117.

It is not a de Polignac number, because 15375117 - 2⁶ = 15375053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15375127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2562517 + ... + 2562522.

It is an arithmetic number, because the mean of its divisors is an integer number (5125040).

Almost surely, 2^15375117 is an apocalyptic number.

It is an amenable number.

15375117 is a deficient number, since it is larger than the sum of its proper divisors (5125043).

15375117 is an equidigital number, since it uses as much as digits as its factorization.

15375117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125042.

The product of its digits is 3675, while the sum is 30.

The square root of 15375117 is about 3921.1117046062. Note that the first 3 decimals coincide. The cubic root of 15375117 is about 248.6601224079.

The spelling of 15375117 in words is "fifteen million, three hundred seventy-five thousand, one hundred seventeen".