451645152 has 72 divisors (see below), whose sum is σ = 1379145096. Its totient is φ = 129040128.

The previous prime is 451645151. The next prime is 451645157. The reversal of 451645152 is 251546154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451645151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43303 + ... + 52710.

It is an arithmetic number, because the mean of its divisors is an integer number (19154793).

Almost surely, 2^451645152 is an apocalyptic number.

451645152 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451645152 is an abundant number, since it is smaller than the sum of its proper divisors (927499944).

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

451645152 is a wasteful number, since it uses less digits than its factorization.

451645152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96040 (or 96025 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 451645152 is about 21251.9446639596. The cubic root of 451645152 is about 767.2421451975.

The spelling of 451645152 in words is "four hundred fifty-one million, six hundred forty-five thousand, one hundred fifty-two".