15073013 has 4 divisors (see below), whose sum is σ = 15136320. Its totient is φ = 15009708.

The previous prime is 15073007. The next prime is 15073031. The reversal of 15073013 is 31037051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15073013 - 2⁴ = 15072997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15073043) 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, 31295 + ... + 31772.

It is an arithmetic number, because the mean of its divisors is an integer number (3784080).

Almost surely, 2^15073013 is an apocalyptic number.

It is an amenable number.

15073013 is a deficient number, since it is larger than the sum of its proper divisors (63307).

15073013 is an equidigital number, since it uses as much as digits as its factorization.

15073013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63306.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 15073013 is about 3882.3978415407. The cubic root of 15073013 is about 247.0207055916.

It can be divided in two parts, 1507 and 3013, that multiplied together give a triangular number (4540591 = T₃₀₁₃).

The spelling of 15073013 in words is "fifteen million, seventy-three thousand, thirteen".