15093997 has 2 divisors, whose sum is σ = 15093998. Its totient is φ = 15093996.

The previous prime is 15093983. The next prime is 15094019. The reversal of 15093997 is 79939051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11600836 + 3493161 = 3406^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 15093997 - 2²³ = 6705389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15093917) 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 as a sum of consecutive naturals, namely, 7546998 + 7546999.

It is an arithmetic number, because the mean of its divisors is an integer number (7546999).

Almost surely, 2^15093997 is an apocalyptic number.

It is an amenable number.

15093997 is a deficient number, since it is larger than the sum of its proper divisors (1).

15093997 is an equidigital number, since it uses as much as digits as its factorization.

15093997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 15093997 is about 3885.0993552289. The cubic root of 15093997 is about 247.1352829699.

The spelling of 15093997 in words is "fifteen million, ninety-three thousand, nine hundred ninety-seven".