45177431 has 4 divisors (see below), whose sum is σ = 48652632. Its totient is φ = 41702232.

The previous prime is 45177427. The next prime is 45177443. The reversal of 45177431 is 13477154.

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

It is not a de Polignac number, because 45177431 - 2² = 45177427 is a prime.

It is a super-2 number, since 2×45177431² = 4082000543519522, 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 (45177491) 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, 1737581 + ... + 1737606.

It is an arithmetic number, because the mean of its divisors is an integer number (12163158).

Almost surely, 2^45177431 is an apocalyptic number.

45177431 is a deficient number, since it is larger than the sum of its proper divisors (3475201).

45177431 is a wasteful number, since it uses less digits than its factorization.

45177431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475200.

The product of its digits is 11760, while the sum is 32.

The square root of 45177431 is about 6721.4158478701. The cubic root of 45177431 is about 356.1562011800.

The spelling of 45177431 in words is "forty-five million, one hundred seventy-seven thousand, four hundred thirty-one".