451531057 has 4 divisors (see below), whose sum is σ = 457246720. Its totient is φ = 445815396.

The previous prime is 451531051. The next prime is 451531097. The reversal of 451531057 is 750135154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 451531057 - 2³ = 451531049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451531051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857713 + ... + 2857870.

It is an arithmetic number, because the mean of its divisors is an integer number (114311680).

Almost surely, 2^451531057 is an apocalyptic number.

It is an amenable number.

451531057 is a deficient number, since it is larger than the sum of its proper divisors (5715663).

451531057 is an equidigital number, since it uses as much as digits as its factorization.

451531057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715662.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 451531057 is about 21249.2601518265. The cubic root of 451531057 is about 767.1775326253.

The spelling of 451531057 in words is "four hundred fifty-one million, five hundred thirty-one thousand, fifty-seven".