131254769 has 2 divisors, whose sum is σ = 131254770. Its totient is φ = 131254768.

The previous prime is 131254757. The next prime is 131254771. The reversal of 131254769 is 967452131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110670400 + 20584369 = 10520^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 131254769 - 2²⁴ = 114477553 is a prime.

It is a super-2 number, since 2×131254769² = 34455628770486722, which contains 22 as substring.

Together with 131254771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131254069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65627384 + 65627385.

It is an arithmetic number, because the mean of its divisors is an integer number (65627385).

Almost surely, 2^131254769 is an apocalyptic number.

It is an amenable number.

131254769 is a deficient number, since it is larger than the sum of its proper divisors (1).

131254769 is an equidigital number, since it uses as much as digits as its factorization.

131254769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 131254769 is about 11456.6473717227. The cubic root of 131254769 is about 508.2043335001.

The spelling of 131254769 in words is "one hundred thirty-one million, two hundred fifty-four thousand, seven hundred sixty-nine".