72499135 has 16 divisors (see below), whose sum is σ = 92340000. Its totient is φ = 54455296.

The previous prime is 72499129. The next prime is 72499153. The reversal of 72499135 is 53199427.

It is a cyclic number.

It is not a de Polignac number, because 72499135 - 2³ = 72499127 is a prime.

It is a super-2 number, since 2×72499135² = 10512249151496450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47616 + ... + 49114.

It is an arithmetic number, because the mean of its divisors is an integer number (5771250).

Almost surely, 2^72499135 is an apocalyptic number.

72499135 is a deficient number, since it is larger than the sum of its proper divisors (19840865).

72499135 is a wasteful number, since it uses less digits than its factorization.

72499135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

The product of its digits is 68040, while the sum is 40.

The square root of 72499135 is about 8514.6423882627. The cubic root of 72499135 is about 416.9758874390.

It can be divided in two parts, 7249 and 9135, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 72499135 in words is "seventy-two million, four hundred ninety-nine thousand, one hundred thirty-five".