131269031 has 2 divisors, whose sum is σ = 131269032. Its totient is φ = 131269030.

The previous prime is 131269009. The next prime is 131269129. The reversal of 131269031 is 130962131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131269031 - 2²⁶ = 64160167 is a prime.

It is a super-2 number, since 2×131269031² = 34463116999357922, which contains 22 as substring.

It is equal to p_7446113 and since 131269031 and 7446113 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131268031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65634515 + 65634516.

It is an arithmetic number, because the mean of its divisors is an integer number (65634516).

Almost surely, 2^131269031 is an apocalyptic number.

131269031 is a deficient number, since it is larger than the sum of its proper divisors (1).

131269031 is an equidigital number, since it uses as much as digits as its factorization.

131269031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 131269031 is about 11457.2697882174. The cubic root of 131269031 is about 508.2227398096. Note that the first 3 decimals are identical.

The spelling of 131269031 in words is "one hundred thirty-one million, two hundred sixty-nine thousand, thirty-one".