45323791 has 4 divisors (see below), whose sum is σ = 45368784. Its totient is φ = 45278800.

The previous prime is 45323783. The next prime is 45323807. The reversal of 45323791 is 19732354.

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

It is a cyclic number.

It is not a de Polignac number, because 45323791 - 2³ = 45323783 is a prime.

It is a super-2 number, since 2×45323791² = 4108492061223362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45323701) 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, 20950 + ... + 23011.

It is an arithmetic number, because the mean of its divisors is an integer number (11342196).

Almost surely, 2^45323791 is an apocalyptic number.

45323791 is a deficient number, since it is larger than the sum of its proper divisors (44993).

45323791 is a wasteful number, since it uses less digits than its factorization.

45323791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44992.

The product of its digits is 22680, while the sum is 34.

The square root of 45323791 is about 6732.2946311046. The cubic root of 45323791 is about 356.5403961943.

The spelling of 45323791 in words is "forty-five million, three hundred twenty-three thousand, seven hundred ninety-one".