131715737 has 2 divisors, whose sum is σ = 131715738. Its totient is φ = 131715736.

The previous prime is 131715713. The next prime is 131715743. The reversal of 131715737 is 737517131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131698576 + 17161 = 11476^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 131715737 - 2¹² = 131711641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131715697 and 131715706.

It is not a weakly prime, because it can be changed into another prime (131715707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65857868 + 65857869.

It is an arithmetic number, because the mean of its divisors is an integer number (65857869).

Almost surely, 2^131715737 is an apocalyptic number.

It is an amenable number.

131715737 is a deficient number, since it is larger than the sum of its proper divisors (1).

131715737 is an equidigital number, since it uses as much as digits as its factorization.

131715737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15435, while the sum is 35.

The square root of 131715737 is about 11476.7476664776. The cubic root of 131715737 is about 508.7985778662.

The spelling of 131715737 in words is "one hundred thirty-one million, seven hundred fifteen thousand, seven hundred thirty-seven".