131001943 has 2 divisors, whose sum is σ = 131001944. Its totient is φ = 131001942.

The previous prime is 131001911. The next prime is 131001947. The reversal of 131001943 is 349100131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131001943 - 2⁵ = 131001911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131001947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500971 + 65500972.

It is an arithmetic number, because the mean of its divisors is an integer number (65500972).

Almost surely, 2^131001943 is an apocalyptic number.

131001943 is a deficient number, since it is larger than the sum of its proper divisors (1).

131001943 is an equidigital number, since it uses as much as digits as its factorization.

131001943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 131001943 is about 11445.6080222940. The cubic root of 131001943 is about 507.8778187467.

The spelling of 131001943 in words is "one hundred thirty-one million, one thousand, nine hundred forty-three".