451545132 has 48 divisors (see below), whose sum is σ = 1089672192. Its totient is φ = 145381440.

The previous prime is 451545103. The next prime is 451545173. The reversal of 451545132 is 231545154.

It is a self number, because there is not a number n which added to its sum of digits gives 451545132.

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, 295723 + ... + 297245.

It is an arithmetic number, because the mean of its divisors is an integer number (22701504).

Almost surely, 2^451545132 is an apocalyptic number.

It is an amenable number.

451545132 is an abundant number, since it is smaller than the sum of its proper divisors (638127060).

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

451545132 is a wasteful number, since it uses less digits than its factorization.

451545132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358 (or 2356 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 451545132 is about 21249.5913372469. The cubic root of 451545132 is about 767.1855039571.

The spelling of 451545132 in words is "four hundred fifty-one million, five hundred forty-five thousand, one hundred thirty-two".