45431506 has 4 divisors (see below), whose sum is σ = 68147262. Its totient is φ = 22715752.

The previous prime is 45431479. The next prime is 45431513. The reversal of 45431506 is 60513454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60513454 = 2 ⋅30256727.

It can be written as a sum of positive squares in only one way, i.e., 24354225 + 21077281 = 4935^2 + 4591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11357875 + ... + 11357878.

Almost surely, 2^45431506 is an apocalyptic number.

45431506 is a deficient number, since it is larger than the sum of its proper divisors (22715756).

45431506 is a wasteful number, since it uses less digits than its factorization.

45431506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22715755.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 45431506 is about 6740.2897563829. The cubic root of 45431506 is about 356.8226200494.

The spelling of 45431506 in words is "forty-five million, four hundred thirty-one thousand, five hundred six".