61163317 has 2 divisors, whose sum is σ = 61163318. Its totient is φ = 61163316.

The previous prime is 61163273. The next prime is 61163321. The reversal of 61163317 is 71336116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36650916 + 24512401 = 6054^2 + 4951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61163317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61163387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30581658 + 30581659.

It is an arithmetic number, because the mean of its divisors is an integer number (30581659).

Almost surely, 2^61163317 is an apocalyptic number.

It is an amenable number.

61163317 is a deficient number, since it is larger than the sum of its proper divisors (1).

61163317 is an equidigital number, since it uses as much as digits as its factorization.

61163317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 61163317 is about 7820.6979867528. The cubic root of 61163317 is about 394.0007150390. Note that the first 3 decimals are identical.

The spelling of 61163317 in words is "sixty-one million, one hundred sixty-three thousand, three hundred seventeen".