45747831 has 4 divisors (see below), whose sum is σ = 60997112. Its totient is φ = 30498552.

The previous prime is 45747827. The next prime is 45747881. The reversal of 45747831 is 13874754.

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

It is not a de Polignac number, because 45747831 - 2² = 45747827 is a prime.

It is a super-2 number, since 2×45747831² = 4185728082409122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45747831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45747881) 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, 7624636 + ... + 7624641.

It is an arithmetic number, because the mean of its divisors is an integer number (15249278).

Almost surely, 2^45747831 is an apocalyptic number.

45747831 is a deficient number, since it is larger than the sum of its proper divisors (15249281).

45747831 is a wasteful number, since it uses less digits than its factorization.

45747831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249280.

The product of its digits is 94080, while the sum is 39.

The square root of 45747831 is about 6763.7142902402. The cubic root of 45747831 is about 357.6488525489.

The spelling of 45747831 in words is "forty-five million, seven hundred forty-seven thousand, eight hundred thirty-one".