613033961 has 2 divisors, whose sum is σ = 613033962. Its totient is φ = 613033960.

The previous prime is 613033919. The next prime is 613033999. The reversal of 613033961 is 169330316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575088361 + 37945600 = 23981^2 + 6160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613033961 is a prime.

It is not a weakly prime, because it can be changed into another prime (613033261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306516980 + 306516981.

It is an arithmetic number, because the mean of its divisors is an integer number (306516981).

Almost surely, 2^613033961 is an apocalyptic number.

It is an amenable number.

613033961 is a deficient number, since it is larger than the sum of its proper divisors (1).

613033961 is an equidigital number, since it uses as much as digits as its factorization.

613033961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 613033961 is about 24759.5226327165. The cubic root of 613033961 is about 849.4963387577.

The spelling of 613033961 in words is "six hundred thirteen million, thirty-three thousand, nine hundred sixty-one".