61308017 has 2 divisors, whose sum is σ = 61308018. Its totient is φ = 61308016.

The previous prime is 61308011. The next prime is 61308053. The reversal of 61308017 is 71080316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37503376 + 23804641 = 6124^2 + 4879^2 .

It is a cyclic number.

It is not a de Polignac number, because 61308017 - 2⁸ = 61307761 is a prime.

It is a Chen prime.

It is equal to p_3635081 and since 61308017 and 3635081 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61308011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30654008 + 30654009.

It is an arithmetic number, because the mean of its divisors is an integer number (30654009).

Almost surely, 2^61308017 is an apocalyptic number.

It is an amenable number.

61308017 is a deficient number, since it is larger than the sum of its proper divisors (1).

61308017 is an equidigital number, since it uses as much as digits as its factorization.

61308017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 61308017 is about 7829.9436141009. The cubic root of 61308017 is about 394.3111789234.

The spelling of 61308017 in words is "sixty-one million, three hundred eight thousand, seventeen".