452131491 has 16 divisors (see below), whose sum is σ = 689577984. Its totient is φ = 258129984.

The previous prime is 452131483. The next prime is 452131513. The reversal of 452131491 is 194131254.

It is not a de Polignac number, because 452131491 - 2³ = 452131483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (452131591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16030 + ... + 34076.

It is an arithmetic number, because the mean of its divisors is an integer number (43098624).

Almost surely, 2^452131491 is an apocalyptic number.

452131491 is a deficient number, since it is larger than the sum of its proper divisors (237446493).

452131491 is a wasteful number, since it uses less digits than its factorization.

452131491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250.

The product of its digits is 4320, while the sum is 30.

The square root of 452131491 is about 21263.3838087921. The cubic root of 452131491 is about 767.5174394351.

The spelling of 452131491 in words is "four hundred fifty-two million, one hundred thirty-one thousand, four hundred ninety-one".