260613491 has 2 divisors, whose sum is σ = 260613492. Its totient is φ = 260613490.

The previous prime is 260613473. The next prime is 260613527. The reversal of 260613491 is 194316062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260613491 - 2⁶ = 260613427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (260613091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130306745 + 130306746.

It is an arithmetic number, because the mean of its divisors is an integer number (130306746).

Almost surely, 2^260613491 is an apocalyptic number.

260613491 is a deficient number, since it is larger than the sum of its proper divisors (1).

260613491 is an equidigital number, since it uses as much as digits as its factorization.

260613491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 260613491 is about 16143.5278362569. The cubic root of 260613491 is about 638.7520367121.

The spelling of 260613491 in words is "two hundred sixty million, six hundred thirteen thousand, four hundred ninety-one".