131227973 has 2 divisors, whose sum is σ = 131227974. Its totient is φ = 131227972.

The previous prime is 131227933. The next prime is 131227997. The reversal of 131227973 is 379722131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130484929 + 743044 = 11423^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 131227973 - 2⁸ = 131227717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131227933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65613986 + 65613987.

It is an arithmetic number, because the mean of its divisors is an integer number (65613987).

Almost surely, 2^131227973 is an apocalyptic number.

It is an amenable number.

131227973 is a deficient number, since it is larger than the sum of its proper divisors (1).

131227973 is an equidigital number, since it uses as much as digits as its factorization.

131227973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 131227973 is about 11455.4778599585. The cubic root of 131227973 is about 508.1697474041.

The spelling of 131227973 in words is "one hundred thirty-one million, two hundred twenty-seven thousand, nine hundred seventy-three".