15375947 has 2 divisors, whose sum is σ = 15375948. Its totient is φ = 15375946.

The previous prime is 15375923. The next prime is 15375961. The reversal of 15375947 is 74957351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15375947 - 2¹⁰ = 15374923 is a prime.

It is a super-2 number, since 2×15375947² = 472839492293618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15375967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7687973 + 7687974.

It is an arithmetic number, because the mean of its divisors is an integer number (7687974).

Almost surely, 2^15375947 is an apocalyptic number.

15375947 is a deficient number, since it is larger than the sum of its proper divisors (1).

15375947 is an equidigital number, since it uses as much as digits as its factorization.

15375947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 15375947 is about 3921.2175405096. The cubic root of 15375947 is about 248.6645968277.

The spelling of 15375947 in words is "fifteen million, three hundred seventy-five thousand, nine hundred forty-seven".