45322491 has 4 divisors (see below), whose sum is σ = 60429992. Its totient is φ = 30214992.

The previous prime is 45322471. The next prime is 45322513. The reversal of 45322491 is 19422354.

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

It is not a de Polignac number, because 45322491 - 2⁶ = 45322427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45322471) 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, 7553746 + ... + 7553751.

It is an arithmetic number, because the mean of its divisors is an integer number (15107498).

Almost surely, 2^45322491 is an apocalyptic number.

45322491 is a deficient number, since it is larger than the sum of its proper divisors (15107501).

45322491 is a wasteful number, since it uses less digits than its factorization.

45322491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15107500.

The product of its digits is 8640, while the sum is 30.

The square root of 45322491 is about 6732.1980808648. The cubic root of 45322491 is about 356.5369873374.

The spelling of 45322491 in words is "forty-five million, three hundred twenty-two thousand, four hundred ninety-one".