45479631 has 4 divisors (see below), whose sum is σ = 60639512. Its totient is φ = 30319752.

The previous prime is 45479543. The next prime is 45479633. The reversal of 45479631 is 13697454.

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

It is not a de Polignac number, because 45479631 - 2¹⁹ = 44955343 is a prime.

It is a super-2 number, since 2×45479631² = 4136793671792322, 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 45479631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45479633) 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, 7579936 + ... + 7579941.

It is an arithmetic number, because the mean of its divisors is an integer number (15159878).

Almost surely, 2^45479631 is an apocalyptic number.

45479631 is a deficient number, since it is larger than the sum of its proper divisors (15159881).

45479631 is a wasteful number, since it uses less digits than its factorization.

45479631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15159880.

The product of its digits is 90720, while the sum is 39.

The square root of 45479631 is about 6743.8587618662. The cubic root of 45479631 is about 356.9485680994.

The spelling of 45479631 in words is "forty-five million, four hundred seventy-nine thousand, six hundred thirty-one".