131134643 has 2 divisors, whose sum is σ = 131134644. Its totient is φ = 131134642.

The previous prime is 131134609. The next prime is 131134691. The reversal of 131134643 is 346431131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131134643 - 2²⁰ = 130086067 is a prime.

It is not a weakly prime, because it can be changed into another prime (131134543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65567321 + 65567322.

It is an arithmetic number, because the mean of its divisors is an integer number (65567322).

Almost surely, 2^131134643 is an apocalyptic number.

131134643 is a deficient number, since it is larger than the sum of its proper divisors (1).

131134643 is an equidigital number, since it uses as much as digits as its factorization.

131134643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 131134643 is about 11451.4035384314. The cubic root of 131134643 is about 508.0492478657.

Adding to 131134643 its reverse (346431131), we get a palindrome (477565774).

The spelling of 131134643 in words is "one hundred thirty-one million, one hundred thirty-four thousand, six hundred forty-three".