617651113 has 2 divisors, whose sum is σ = 617651114. Its totient is φ = 617651112.

The previous prime is 617651093. The next prime is 617651119. The reversal of 617651113 is 311156716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340328704 + 277322409 = 18448^2 + 16653^2 .

It is a cyclic number.

It is not a de Polignac number, because 617651113 - 2¹⁷ = 617520041 is a prime.

It is not a weakly prime, because it can be changed into another prime (617651119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308825556 + 308825557.

It is an arithmetic number, because the mean of its divisors is an integer number (308825557).

Almost surely, 2^617651113 is an apocalyptic number.

It is an amenable number.

617651113 is a deficient number, since it is larger than the sum of its proper divisors (1).

617651113 is an equidigital number, since it uses as much as digits as its factorization.

617651113 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 617651113 is about 24852.5876519931. The cubic root of 617651113 is about 851.6237074203.

The spelling of 617651113 in words is "six hundred seventeen million, six hundred fifty-one thousand, one hundred thirteen".