72503135 has 8 divisors (see below), whose sum is σ = 87901296. Its totient is φ = 57404160.

The previous prime is 72503087. The next prime is 72503159. The reversal of 72503135 is 53130527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72503135 - 2¹⁸ = 72240991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74261 + ... + 75230.

It is an arithmetic number, because the mean of its divisors is an integer number (10987662).

Almost surely, 2^72503135 is an apocalyptic number.

72503135 is a deficient number, since it is larger than the sum of its proper divisors (15398161).

72503135 is a wasteful number, since it uses less digits than its factorization.

72503135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149593.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 72503135 is about 8514.8772745119. The cubic root of 72503135 is about 416.9835559116.

The spelling of 72503135 in words is "seventy-two million, five hundred three thousand, one hundred thirty-five".