15265139 has 2 divisors, whose sum is σ = 15265140. Its totient is φ = 15265138.

The previous prime is 15265121. The next prime is 15265141. The reversal of 15265139 is 93156251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15265139 - 2⁸ = 15264883 is a prime.

Together with 15265141, 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 (15265109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7632569 + 7632570.

It is an arithmetic number, because the mean of its divisors is an integer number (7632570).

Almost surely, 2^15265139 is an apocalyptic number.

15265139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15265139 is an equidigital number, since it uses as much as digits as its factorization.

15265139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 15265139 is about 3907.0627074568. The cubic root of 15265139 is about 248.0658156485.

The spelling of 15265139 in words is "fifteen million, two hundred sixty-five thousand, one hundred thirty-nine".