15073073 has 4 divisors (see below), whose sum is σ = 15728448. Its totient is φ = 14417700.

The previous prime is 15073043. The next prime is 15073111. The reversal of 15073073 is 37037051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37037051 = 173 ⋅214087.

It is a cyclic number.

It is not a de Polignac number, because 15073073 - 2⁸ = 15072817 is a prime.

It is a Duffinian number.

It is a Curzon 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, 327653 + ... + 327698.

It is an arithmetic number, because the mean of its divisors is an integer number (3932112).

Almost surely, 2^15073073 is an apocalyptic number.

It is an amenable number.

15073073 is a deficient number, since it is larger than the sum of its proper divisors (655375).

15073073 is an equidigital number, since it uses as much as digits as its factorization.

15073073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655374.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 15073073 is about 3882.4055687164. The cubic root of 15073073 is about 247.0210333567.

The spelling of 15073073 in words is "fifteen million, seventy-three thousand, seventy-three".