45313812 has 18 divisors (see below), whose sum is σ = 114543338. Its totient is φ = 15104592.

The previous prime is 45313777. The next prime is 45313831. The reversal of 45313812 is 21831354.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 31741956 + 13571856 = 5634^2 + 3684^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 629323 + ... + 629394.

Almost surely, 2^45313812 is an apocalyptic number.

It is an amenable number.

45313812 is an abundant number, since it is smaller than the sum of its proper divisors (69229526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45313812 is a wasteful number, since it uses less digits than its factorization.

45313812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258727 (or 1258722 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 45313812 is about 6731.5534611262. The cubic root of 45313812 is about 356.5142276142.

The spelling of 45313812 in words is "forty-five million, three hundred thirteen thousand, eight hundred twelve".