131763631 has 2 divisors, whose sum is σ = 131763632. Its totient is φ = 131763630.

The previous prime is 131763601. The next prime is 131763649. The reversal of 131763631 is 136367131.

It is a strong prime.

It is an emirp because it is prime and its reverse (136367131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131763631 - 2⁷ = 131763503 is a prime.

It is a super-5 number, since 5×131763631⁵ (a number of 42 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 131763593 and 131763602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131763601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65881815 + 65881816.

It is an arithmetic number, because the mean of its divisors is an integer number (65881816).

Almost surely, 2^131763631 is an apocalyptic number.

131763631 is a deficient number, since it is larger than the sum of its proper divisors (1).

131763631 is an equidigital number, since it uses as much as digits as its factorization.

131763631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 131763631 is about 11478.8340435778. The cubic root of 131763631 is about 508.8602395594.

It can be divided in two parts, 13176 and 3631, that added together give a 5-th power (16807 = 7⁵).

The spelling of 131763631 in words is "one hundred thirty-one million, seven hundred sixty-three thousand, six hundred thirty-one".