72514801 has 4 divisors (see below), whose sum is σ = 72588532. Its totient is φ = 72441072.

The previous prime is 72514789. The next prime is 72514831. The reversal of 72514801 is 10841527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64786401 + 7728400 = 8049^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 72514801 - 2⁹ = 72514289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72514801.

It is not an unprimeable number, because it can be changed into a prime (72514831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35370 + ... + 37363.

It is an arithmetic number, because the mean of its divisors is an integer number (18147133).

Almost surely, 2^72514801 is an apocalyptic number.

It is an amenable number.

72514801 is a deficient number, since it is larger than the sum of its proper divisors (73731).

72514801 is an equidigital number, since it uses as much as digits as its factorization.

72514801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73730.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 72514801 is about 8515.5622832553. The cubic root of 72514801 is about 417.0059194010.

The spelling of 72514801 in words is "seventy-two million, five hundred fourteen thousand, eight hundred one".