45431339 has 4 divisors (see below), whose sum is σ = 45455760. Its totient is φ = 45406920.

The previous prime is 45431333. The next prime is 45431341. The reversal of 45431339 is 93313454.

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 45431339 - 2²⁰ = 44382763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45431333) 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, 9167 + ... + 13224.

It is an arithmetic number, because the mean of its divisors is an integer number (11363940).

Almost surely, 2^45431339 is an apocalyptic number.

45431339 is a deficient number, since it is larger than the sum of its proper divisors (24421).

45431339 is a wasteful number, since it uses less digits than its factorization.

45431339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24420.

The product of its digits is 19440, while the sum is 32.

The square root of 45431339 is about 6740.2773681800. The cubic root of 45431339 is about 356.8221828385.

The spelling of 45431339 in words is "forty-five million, four hundred thirty-one thousand, three hundred thirty-nine".