15355139 has 2 divisors, whose sum is σ = 15355140. Its totient is φ = 15355138.

The previous prime is 15355121. The next prime is 15355141. The reversal of 15355139 is 93155351.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15355139 - 2⁸ = 15354883 is a prime.

Together with 15355141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15355159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7677569 + 7677570.

It is an arithmetic number, because the mean of its divisors is an integer number (7677570).

Almost surely, 2^15355139 is an apocalyptic number.

15355139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15355139 is an equidigital number, since it uses as much as digits as its factorization.

15355139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10125, while the sum is 32.

The square root of 15355139 is about 3918.5633847113. The cubic root of 15355139 is about 248.5523750408.

The spelling of 15355139 in words is "fifteen million, three hundred fifty-five thousand, one hundred thirty-nine".