61266313 has 2 divisors, whose sum is σ = 61266314. Its totient is φ = 61266312.

The previous prime is 61266301. The next prime is 61266347. The reversal of 61266313 is 31366216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39476089 + 21790224 = 6283^2 + 4668^2 .

It is a cyclic number.

It is not a de Polignac number, because 61266313 - 2⁹ = 61265801 is a prime.

It is a super-2 number, since 2×61266313² = 7507122217227938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61216313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30633156 + 30633157.

It is an arithmetic number, because the mean of its divisors is an integer number (30633157).

Almost surely, 2^61266313 is an apocalyptic number.

It is an amenable number.

61266313 is a deficient number, since it is larger than the sum of its proper divisors (1).

61266313 is an equidigital number, since it uses as much as digits as its factorization.

61266313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 61266313 is about 7827.2800512055. The cubic root of 61266313 is about 394.2217502521.

The spelling of 61266313 in words is "sixty-one million, two hundred sixty-six thousand, three hundred thirteen".