61236317 has 2 divisors, whose sum is σ = 61236318. Its totient is φ = 61236316.

The previous prime is 61236299. The next prime is 61236323. The reversal of 61236317 is 71363216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 17926756 = 6581^2 + 4234^2 .

It is a cyclic number.

It is not a de Polignac number, because 61236317 - 2¹² = 61232221 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61236317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61236337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30618158 + 30618159.

It is an arithmetic number, because the mean of its divisors is an integer number (30618159).

Almost surely, 2^61236317 is an apocalyptic number.

It is an amenable number.

61236317 is a deficient number, since it is larger than the sum of its proper divisors (1).

61236317 is an equidigital number, since it uses as much as digits as its factorization.

61236317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 61236317 is about 7825.3636976181. The cubic root of 61236317 is about 394.1574027316.

The spelling of 61236317 in words is "sixty-one million, two hundred thirty-six thousand, three hundred seventeen".