72373115 has 4 divisors (see below), whose sum is σ = 86847744. Its totient is φ = 57898488.

The previous prime is 72373099. The next prime is 72373123. The reversal of 72373115 is 51137327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51137327 = 211 ⋅242357.

It is a cyclic number.

It is not a de Polignac number, because 72373115 - 2⁴ = 72373099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237307 + ... + 7237316.

It is an arithmetic number, because the mean of its divisors is an integer number (21711936).

Almost surely, 2^72373115 is an apocalyptic number.

72373115 is a deficient number, since it is larger than the sum of its proper divisors (14474629).

72373115 is a wasteful number, since it uses less digits than its factorization.

72373115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14474628.

The product of its digits is 4410, while the sum is 29.

The square root of 72373115 is about 8507.2389763072. The cubic root of 72373115 is about 416.7341476483.

The spelling of 72373115 in words is "seventy-two million, three hundred seventy-three thousand, one hundred fifteen".