615161713 has 2 divisors, whose sum is σ = 615161714. Its totient is φ = 615161712.

The previous prime is 615161653. The next prime is 615161731. The reversal of 615161713 is 317161516.

Together with next prime (615161731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477990769 + 137170944 = 21863^2 + 11712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-615161713 is a prime.

It is not a weakly prime, because it can be changed into another prime (615161753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307580856 + 307580857.

It is an arithmetic number, because the mean of its divisors is an integer number (307580857).

Almost surely, 2^615161713 is an apocalyptic number.

It is an amenable number.

615161713 is a deficient number, since it is larger than the sum of its proper divisors (1).

615161713 is an equidigital number, since it uses as much as digits as its factorization.

615161713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 31.

The square root of 615161713 is about 24802.4537697382. The cubic root of 615161713 is about 850.4780300730.

The spelling of 615161713 in words is "six hundred fifteen million, one hundred sixty-one thousand, seven hundred thirteen".