72813051 has 12 divisors (see below), whose sum is σ = 105557712. Its totient is φ = 48365136.

The previous prime is 72813031. The next prime is 72813109. The reversal of 72813051 is 15031827.

It is not a de Polignac number, because 72813051 - 2⁷ = 72812923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72813031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12111 + ... + 17096.

It is an arithmetic number, because the mean of its divisors is an integer number (8796476).

Almost surely, 2^72813051 is an apocalyptic number.

72813051 is a deficient number, since it is larger than the sum of its proper divisors (32744661).

72813051 is a wasteful number, since it uses less digits than its factorization.

72813051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29490 (or 29487 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 72813051 is about 8533.0563692032. The cubic root of 72813051 is about 417.5768460265.

Adding to 72813051 its reverse (15031827), we get a palindrome (87844878).

The spelling of 72813051 in words is "seventy-two million, eight hundred thirteen thousand, fifty-one".