61417117 has 2 divisors, whose sum is σ = 61417118. Its totient is φ = 61417116.

The previous prime is 61417093. The next prime is 61417129. The reversal of 61417117 is 71171416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 6937956 = 7381^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 61417117 - 2²³ = 53028509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61417217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30708558 + 30708559.

It is an arithmetic number, because the mean of its divisors is an integer number (30708559).

Almost surely, 2^61417117 is an apocalyptic number.

It is an amenable number.

61417117 is a deficient number, since it is larger than the sum of its proper divisors (1).

61417117 is an equidigital number, since it uses as much as digits as its factorization.

61417117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 28.

The square root of 61417117 is about 7836.9073619636. The cubic root of 61417117 is about 394.5449376754.

The spelling of 61417117 in words is "sixty-one million, four hundred seventeen thousand, one hundred seventeen".