45013212 has 48 divisors (see below), whose sum is σ = 123570720. Its totient is φ = 14121216.

The previous prime is 45013183. The next prime is 45013253. The reversal of 45013212 is 21231054.

45013212 is a `hidden beast` number, since 450 + 1 + 3 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10423 + ... + 14094.

It is an arithmetic number, because the mean of its divisors is an integer number (2574390).

Almost surely, 2^45013212 is an apocalyptic number.

It is an amenable number.

45013212 is an abundant number, since it is smaller than the sum of its proper divisors (78557508).

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

45013212 is a wasteful number, since it uses less digits than its factorization.

45013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24547 (or 24539 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 45013212 is about 6709.1886245656. The cubic root of 45013212 is about 355.7241371720.

Adding to 45013212 its reverse (21231054), we get a palindrome (66244266).

The spelling of 45013212 in words is "forty-five million, thirteen thousand, two hundred twelve".