131763431 has 2 divisors, whose sum is σ = 131763432. Its totient is φ = 131763430.

The previous prime is 131763427. The next prime is 131763469. The reversal of 131763431 is 134367131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131763431 - 2² = 131763427 is a prime.

It is a super-2 number, since 2×131763431² = 34723203497783522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131763394 and 131763403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131763421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65881715 + 65881716.

It is an arithmetic number, because the mean of its divisors is an integer number (65881716).

Almost surely, 2^131763431 is an apocalyptic number.

131763431 is a deficient number, since it is larger than the sum of its proper divisors (1).

131763431 is an equidigital number, since it uses as much as digits as its factorization.

131763431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 131763431 is about 11478.8253318883. The cubic root of 131763431 is about 508.8599820981.

The spelling of 131763431 in words is "one hundred thirty-one million, seven hundred sixty-three thousand, four hundred thirty-one".