131262641 has 2 divisors, whose sum is σ = 131262642. Its totient is φ = 131262640.

The previous prime is 131262623. The next prime is 131262673. The reversal of 131262641 is 146262131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128165041 + 3097600 = 11321^2 + 1760^2 .

It is an emirp because it is prime and its reverse (146262131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131262641 - 2¹⁰ = 131261617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131262641.

It is not a weakly prime, because it can be changed into another prime (131262601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65631320 + 65631321.

It is an arithmetic number, because the mean of its divisors is an integer number (65631321).

Almost surely, 2^131262641 is an apocalyptic number.

It is an amenable number.

131262641 is a deficient number, since it is larger than the sum of its proper divisors (1).

131262641 is an equidigital number, since it uses as much as digits as its factorization.

131262641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 131262641 is about 11456.9909225765. The cubic root of 131262641 is about 508.2144931425.

The spelling of 131262641 in words is "one hundred thirty-one million, two hundred sixty-two thousand, six hundred forty-one".