15412993 has 2 divisors, whose sum is σ = 15412994. Its totient is φ = 15412992.

The previous prime is 15412987. The next prime is 15412997. The reversal of 15412993 is 39921451.

15412993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8485569 + 6927424 = 2913^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 15412993 - 2⁵ = 15412961 is a prime.

It is not a weakly prime, because it can be changed into another prime (15412997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7706496 + 7706497.

It is an arithmetic number, because the mean of its divisors is an integer number (7706497).

Almost surely, 2^15412993 is an apocalyptic number.

It is an amenable number.

15412993 is a deficient number, since it is larger than the sum of its proper divisors (1).

15412993 is an equidigital number, since it uses as much as digits as its factorization.

15412993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 15412993 is about 3925.9384865278. The cubic root of 15412993 is about 248.8641431324.

The spelling of 15412993 in words is "fifteen million, four hundred twelve thousand, nine hundred ninety-three".