72519491 has 8 divisors (see below), whose sum is σ = 79460400. Its totient is φ = 65636640.

The previous prime is 72519487. The next prime is 72519493. The reversal of 72519491 is 19491527.

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

It is a cyclic number.

It is not a de Polignac number, because 72519491 - 2² = 72519487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72519493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11876 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (9932550).

Almost surely, 2^72519491 is an apocalyptic number.

72519491 is a deficient number, since it is larger than the sum of its proper divisors (6940909).

72519491 is a wasteful number, since it uses less digits than its factorization.

72519491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29029.

The product of its digits is 22680, while the sum is 38.

The square root of 72519491 is about 8515.8376569777. The cubic root of 72519491 is about 417.0149093616.

The spelling of 72519491 in words is "seventy-two million, five hundred nineteen thousand, four hundred ninety-one".