131274541 has 2 divisors, whose sum is σ = 131274542. Its totient is φ = 131274540.

The previous prime is 131274523. The next prime is 131274551. The reversal of 131274541 is 145472131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107557641 + 23716900 = 10371^2 + 4870^2 .

It is a cyclic number.

It is not a de Polignac number, because 131274541 - 2⁵ = 131274509 is a prime.

It is a super-2 number, since 2×131274541² = 34466010229521362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131274511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65637270 + 65637271.

It is an arithmetic number, because the mean of its divisors is an integer number (65637271).

Almost surely, 2^131274541 is an apocalyptic number.

It is an amenable number.

131274541 is a deficient number, since it is larger than the sum of its proper divisors (1).

131274541 is an equidigital number, since it uses as much as digits as its factorization.

131274541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 131274541 is about 11457.5102443768. The cubic root of 131274541 is about 508.2298505706.

The spelling of 131274541 in words is "one hundred thirty-one million, two hundred seventy-four thousand, five hundred forty-one".