45521312 has 12 divisors (see below), whose sum is σ = 89620146. Its totient is φ = 22760640.

The previous prime is 45521309. The next prime is 45521323. The reversal of 45521312 is 21312554.

It can be written as a sum of positive squares in only one way, i.e., 45212176 + 309136 = 6724^2 + 556^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711239 + ... + 711302.

Almost surely, 2^45521312 is an apocalyptic number.

It is an amenable number.

45521312 is a deficient number, since it is larger than the sum of its proper divisors (44098834).

45521312 is a wasteful number, since it uses less digits than its factorization.

45521312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422551 (or 1422543 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 45521312 is about 6746.9483472159. The cubic root of 45521312 is about 357.0575797613.

Adding to 45521312 its reverse (21312554), we get a palindrome (66833866).

The spelling of 45521312 in words is "forty-five million, five hundred twenty-one thousand, three hundred twelve".