132131231 has 4 divisors (see below), whose sum is σ = 132447000. Its totient is φ = 131815464.

The previous prime is 132131227. The next prime is 132131257.

132131231 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132131231 - 2² = 132131227 is a prime.

It is a super-2 number, since 2×132131231² = 34917324411150722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132131201) 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, 157256 + ... + 158093.

It is an arithmetic number, because the mean of its divisors is an integer number (33111750).

Almost surely, 2^132131231 is an apocalyptic number.

132131231 is a deficient number, since it is larger than the sum of its proper divisors (315769).

132131231 is an equidigital number, since it uses as much as digits as its factorization.

132131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315768.

The product of its digits is 108, while the sum is 17.

The square root of 132131231 is about 11494.8349705422. The cubic root of 132131231 is about 509.3330137699. Note that the first 3 decimals are identical.

The spelling of 132131231 in words is "one hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-one".