131445707 has 2 divisors, whose sum is σ = 131445708. Its totient is φ = 131445706.

The previous prime is 131445703. The next prime is 131445709. The reversal of 131445707 is 707544131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131445707 - 2² = 131445703 is a prime.

Together with 131445709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131445701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65722853 + 65722854.

It is an arithmetic number, because the mean of its divisors is an integer number (65722854).

Almost surely, 2^131445707 is an apocalyptic number.

131445707 is a deficient number, since it is larger than the sum of its proper divisors (1).

131445707 is an equidigital number, since it uses as much as digits as its factorization.

131445707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 131445707 is about 11464.9774094849. The cubic root of 131445707 is about 508.4506445607.

Adding to 131445707 its reverse (707544131), we get a palindrome (838989838).

The spelling of 131445707 in words is "one hundred thirty-one million, four hundred forty-five thousand, seven hundred seven".