131441249 has 2 divisors, whose sum is σ = 131441250. Its totient is φ = 131441248.

The previous prime is 131441243. The next prime is 131441269. The reversal of 131441249 is 942144131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129390625 + 2050624 = 11375^2 + 1432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131441249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131441243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65720624 + 65720625.

It is an arithmetic number, because the mean of its divisors is an integer number (65720625).

Almost surely, 2^131441249 is an apocalyptic number.

It is an amenable number.

131441249 is a deficient number, since it is larger than the sum of its proper divisors (1).

131441249 is an equidigital number, since it uses as much as digits as its factorization.

131441249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 131441249 is about 11464.7829896601. The cubic root of 131441249 is about 508.4448964369. Note that the first 3 decimals are identical.

The spelling of 131441249 in words is "one hundred thirty-one million, four hundred forty-one thousand, two hundred forty-nine".