131274551 has 2 divisors, whose sum is σ = 131274552. Its totient is φ = 131274550.

The previous prime is 131274541. The next prime is 131274581. The reversal of 131274551 is 155472131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131274551 - 2¹⁴ = 131258167 is a prime.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65637275 + 65637276.

It is an arithmetic number, because the mean of its divisors is an integer number (65637276).

Almost surely, 2^131274551 is an apocalyptic number.

131274551 is a deficient number, since it is larger than the sum of its proper divisors (1).

131274551 is an equidigital number, since it uses as much as digits as its factorization.

131274551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 29.

The square root of 131274551 is about 11457.5106807718. The cubic root of 131274551 is about 508.2298634756.

The spelling of 131274551 in words is "one hundred thirty-one million, two hundred seventy-four thousand, five hundred fifty-one".