613262257 has 2 divisors, whose sum is σ = 613262258. Its totient is φ = 613262256.

The previous prime is 613262239. The next prime is 613262339. The reversal of 613262257 is 752262316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 613255696 + 6561 = 24764^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 613262257 - 2⁷ = 613262129 is a prime.

It is not a weakly prime, because it can be changed into another prime (613262207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306631128 + 306631129.

It is an arithmetic number, because the mean of its divisors is an integer number (306631129).

Almost surely, 2^613262257 is an apocalyptic number.

It is an amenable number.

613262257 is a deficient number, since it is larger than the sum of its proper divisors (1).

613262257 is an equidigital number, since it uses as much as digits as its factorization.

613262257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 613262257 is about 24764.1324701674. The cubic root of 613262257 is about 849.6017774769.

The spelling of 613262257 in words is "six hundred thirteen million, two hundred sixty-two thousand, two hundred fifty-seven".