132451857 has 18 divisors (see below), whose sum is σ = 194373062. Its totient is φ = 86897664.

The previous prime is 132451843. The next prime is 132451859. The reversal of 132451857 is 758154231.

132451857 is a `hidden beast` number, since 132 + 4 + 518 + 5 + 7 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 34857216 + 97594641 = 5904^2 + 9879^2 .

It is not a de Polignac number, because 132451857 - 2¹⁸ = 132189713 is a prime.

It is a Duffinian number.

Its product of digits (33600) is a multiple of the sum of its prime divisors (525).

It is not an unprimeable number, because it can be changed into a prime (132451859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 294769 + ... + 295217.

Almost surely, 2^132451857 is an apocalyptic number.

It is an amenable number.

132451857 is a deficient number, since it is larger than the sum of its proper divisors (61921205).

132451857 is an frugal number, since it uses more digits than its factorization.

132451857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 525 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 132451857 is about 11508.7730449427. The cubic root of 132451857 is about 509.7446588004.

The spelling of 132451857 in words is "one hundred thirty-two million, four hundred fifty-one thousand, eight hundred fifty-seven".