132449431 has 12 divisors (see below), whose sum is σ = 143328528. Its totient is φ = 121971392.

The previous prime is 132449423. The next prime is 132449441. The reversal of 132449431 is 134944231.

It is not a de Polignac number, because 132449431 - 2³ = 132449423 is a prime.

It is a super-2 number, since 2×132449431² = 35085703544447522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 132449393 and 132449402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132449411) 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, 35790 + ... + 39316.

It is an arithmetic number, because the mean of its divisors is an integer number (11944044).

Almost surely, 2^132449431 is an apocalyptic number.

132449431 is a deficient number, since it is larger than the sum of its proper divisors (10879097).

132449431 is an equidigital number, since it uses as much as digits as its factorization.

132449431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3591 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 132449431 is about 11508.6676466044. The cubic root of 132449431 is about 509.7415466053.

The spelling of 132449431 in words is "one hundred thirty-two million, four hundred forty-nine thousand, four hundred thirty-one".