131462431 has 4 divisors (see below), whose sum is σ = 134259552. Its totient is φ = 128665312.

The previous prime is 131462417. The next prime is 131462449. The reversal of 131462431 is 134264131.

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 131462431 - 2⁹ = 131461919 is a prime.

It is a super-2 number, since 2×131462431² = 34564741528859522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131462396 and 131462405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131462491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398490 + ... + 1398583.

It is an arithmetic number, because the mean of its divisors is an integer number (33564888).

Almost surely, 2^131462431 is an apocalyptic number.

131462431 is a deficient number, since it is larger than the sum of its proper divisors (2797121).

131462431 is an equidigital number, since it uses as much as digits as its factorization.

131462431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797120.

The product of its digits is 1728, while the sum is 25.

The square root of 131462431 is about 11465.7067379207. The cubic root of 131462431 is about 508.4722072479.

The spelling of 131462431 in words is "one hundred thirty-one million, four hundred sixty-two thousand, four hundred thirty-one".