260249461 has 2 divisors, whose sum is σ = 260249462. Its totient is φ = 260249460.

The previous prime is 260249449. The next prime is 260249467. The reversal of 260249461 is 164942062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212722225 + 47527236 = 14585^2 + 6894^2 .

It is a cyclic number.

It is not a de Polignac number, because 260249461 - 2⁹ = 260248949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260249467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130124730 + 130124731.

It is an arithmetic number, because the mean of its divisors is an integer number (130124731).

Almost surely, 2^260249461 is an apocalyptic number.

It is an amenable number.

260249461 is a deficient number, since it is larger than the sum of its proper divisors (1).

260249461 is an equidigital number, since it uses as much as digits as its factorization.

260249461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 260249461 is about 16132.2490992422. The cubic root of 260249461 is about 638.4544910348.

The spelling of 260249461 in words is "two hundred sixty million, two hundred forty-nine thousand, four hundred sixty-one".