15164993 has 2 divisors, whose sum is σ = 15164994. Its totient is φ = 15164992.

The previous prime is 15164971. The next prime is 15165011. The reversal of 15164993 is 39946151.

15164993 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., 9443329 + 5721664 = 3073^2 + 2392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15164993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (15164293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582496 + 7582497.

It is an arithmetic number, because the mean of its divisors is an integer number (7582497).

Almost surely, 2^15164993 is an apocalyptic number.

It is an amenable number.

15164993 is a deficient number, since it is larger than the sum of its proper divisors (1).

15164993 is an equidigital number, since it uses as much as digits as its factorization.

15164993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 15164993 is about 3894.2255969576. The cubic root of 15164993 is about 247.5221515391.

The spelling of 15164993 in words is "fifteen million, one hundred sixty-four thousand, nine hundred ninety-three".