131568001 has 2 divisors, whose sum is σ = 131568002. Its totient is φ = 131568000.

The previous prime is 131567971. The next prime is 131568007. The reversal of 131568001 is 100865131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125417601 + 6150400 = 11199^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 131568001 - 2⁷ = 131567873 is a prime.

It is not a weakly prime, because it can be changed into another prime (131568007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65784000 + 65784001.

It is an arithmetic number, because the mean of its divisors is an integer number (65784001).

Almost surely, 2^131568001 is an apocalyptic number.

It is an amenable number.

131568001 is a deficient number, since it is larger than the sum of its proper divisors (1).

131568001 is an equidigital number, since it uses as much as digits as its factorization.

131568001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 131568001 is about 11470.3095424666. The cubic root of 131568001 is about 508.6082791988.

The spelling of 131568001 in words is "one hundred thirty-one million, five hundred sixty-eight thousand, one".