15073139 has 4 divisors (see below), whose sum is σ = 15222480. Its totient is φ = 14923800.

The previous prime is 15073133. The next prime is 15073187. The reversal of 15073139 is 93137051.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15073139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15073133) 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, 74519 + ... + 74720.

It is an arithmetic number, because the mean of its divisors is an integer number (3805620).

Almost surely, 2^15073139 is an apocalyptic number.

15073139 is a deficient number, since it is larger than the sum of its proper divisors (149341).

15073139 is a wasteful number, since it uses less digits than its factorization.

15073139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149340.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 15073139 is about 3882.4140685919. The cubic root of 15073139 is about 247.0213938973.

The spelling of 15073139 in words is "fifteen million, seventy-three thousand, one hundred thirty-nine".