15051139 has 4 divisors (see below), whose sum is σ = 15371424. Its totient is φ = 14730856.

The previous prime is 15051133. The next prime is 15051143. The reversal of 15051139 is 93115051.

15051139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15051139 - 2⁵ = 15051107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15051133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160072 + ... + 160165.

It is an arithmetic number, because the mean of its divisors is an integer number (3842856).

Almost surely, 2^15051139 is an apocalyptic number.

15051139 is a deficient number, since it is larger than the sum of its proper divisors (320285).

15051139 is an equidigital number, since it uses as much as digits as its factorization.

15051139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320284.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 15051139 is about 3879.5797452817. The cubic root of 15051139 is about 246.9011553552.

The spelling of 15051139 in words is "fifteen million, fifty-one thousand, one hundred thirty-nine".