72503115 has 16 divisors (see below), whose sum is σ = 116210688. Its totient is φ = 38599776.

The previous prime is 72503087. The next prime is 72503159. The reversal of 72503115 is 51130527.

It is not a de Polignac number, because 72503115 - 2⁵ = 72503083 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5124 + ... + 13086.

It is an arithmetic number, because the mean of its divisors is an integer number (7263168).

Almost surely, 2^72503115 is an apocalyptic number.

72503115 is a deficient number, since it is larger than the sum of its proper divisors (43707573).

72503115 is a wasteful number, since it uses less digits than its factorization.

72503115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8578.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 72503115 is about 8514.8761000968. The cubic root of 72503115 is about 416.9835175699.

The spelling of 72503115 in words is "seventy-two million, five hundred three thousand, one hundred fifteen".