45387331 has 8 divisors (see below), whose sum is σ = 52426224. Its totient is φ = 38833920.

The previous prime is 45387313. The next prime is 45387359. The reversal of 45387331 is 13378354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45387331 - 2⁷ = 45387203 is a prime.

It is a super-2 number, since 2×45387331² = 4120019630607122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45387301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121170 + ... + 121543.

It is an arithmetic number, because the mean of its divisors is an integer number (6553278).

Almost surely, 2^45387331 is an apocalyptic number.

45387331 is a deficient number, since it is larger than the sum of its proper divisors (7038893).

45387331 is a wasteful number, since it uses less digits than its factorization.

45387331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242741.

The product of its digits is 30240, while the sum is 34.

The square root of 45387331 is about 6737.0120231450. The cubic root of 45387331 is about 356.7069312372.

The spelling of 45387331 in words is "forty-five million, three hundred eighty-seven thousand, three hundred thirty-one".