131345719 has 2 divisors, whose sum is σ = 131345720. Its totient is φ = 131345718.

The previous prime is 131345717. The next prime is 131345743. The reversal of 131345719 is 917543131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131345719 - 2¹ = 131345717 is a prime.

It is a super-2 number, since 2×131345719² = 34503395799253922, which contains 22 as substring.

Together with 131345717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131345717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65672859 + 65672860.

It is an arithmetic number, because the mean of its divisors is an integer number (65672860).

Almost surely, 2^131345719 is an apocalyptic number.

131345719 is a deficient number, since it is larger than the sum of its proper divisors (1).

131345719 is an equidigital number, since it uses as much as digits as its factorization.

131345719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 131345719 is about 11460.6159956610. The cubic root of 131345719 is about 508.3216892672.

The spelling of 131345719 in words is "one hundred thirty-one million, three hundred forty-five thousand, seven hundred nineteen".