15352991 has 2 divisors, whose sum is σ = 15352992. Its totient is φ = 15352990.

The previous prime is 15352979. The next prime is 15352999. The reversal of 15352991 is 19925351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15352991 - 2⁶ = 15352927 is a prime.

It is a super-3 number, since 3×15352991³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15352999) 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, 7676495 + 7676496.

It is an arithmetic number, because the mean of its divisors is an integer number (7676496).

Almost surely, 2^15352991 is an apocalyptic number.

15352991 is a deficient number, since it is larger than the sum of its proper divisors (1).

15352991 is an equidigital number, since it uses as much as digits as its factorization.

15352991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12150, while the sum is 35.

The square root of 15352991 is about 3918.2892950878. The cubic root of 15352991 is about 248.5407846671.

The spelling of 15352991 in words is "fifteen million, three hundred fifty-two thousand, nine hundred ninety-one".