610264261 has 2 divisors, whose sum is σ = 610264262. Its totient is φ = 610264260.

The previous prime is 610264243. The next prime is 610264271. The reversal of 610264261 is 162462016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412861761 + 197402500 = 20319^2 + 14050^2 .

It is a cyclic number.

It is not a de Polignac number, because 610264261 - 2⁵ = 610264229 is a prime.

It is a super-2 number, since 2×610264261² = 744844936507752242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610264231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305132130 + 305132131.

It is an arithmetic number, because the mean of its divisors is an integer number (305132131).

Almost surely, 2^610264261 is an apocalyptic number.

It is an amenable number.

610264261 is a deficient number, since it is larger than the sum of its proper divisors (1).

610264261 is an equidigital number, since it uses as much as digits as its factorization.

610264261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 610264261 is about 24703.5272987482. The cubic root of 610264261 is about 848.2150599116.

The spelling of 610264261 in words is "six hundred ten million, two hundred sixty-four thousand, two hundred sixty-one".