45721715 has 8 divisors (see below), whose sum is σ = 59086608. Its totient is φ = 33763680.

The previous prime is 45721691. The next prime is 45721727. The reversal of 45721715 is 51712754.

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

It is not a de Polignac number, because 45721715 - 2¹² = 45717619 is a prime.

It is a Duffinian 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, 351641 + ... + 351770.

It is an arithmetic number, because the mean of its divisors is an integer number (7385826).

Almost surely, 2^45721715 is an apocalyptic number.

45721715 is a deficient number, since it is larger than the sum of its proper divisors (13364893).

45721715 is a wasteful number, since it uses less digits than its factorization.

45721715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703429.

The product of its digits is 9800, while the sum is 32.

The square root of 45721715 is about 6761.7834185960. The cubic root of 45721715 is about 357.5807827617.

The spelling of 45721715 in words is "forty-five million, seven hundred twenty-one thousand, seven hundred fifteen".