260381651 has 2 divisors, whose sum is σ = 260381652. Its totient is φ = 260381650.

The previous prime is 260381629. The next prime is 260381663. The reversal of 260381651 is 156183062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260381651 - 2⁶ = 260381587 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260381621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130190825 + 130190826.

It is an arithmetic number, because the mean of its divisors is an integer number (130190826).

Almost surely, 2^260381651 is an apocalyptic number.

260381651 is a deficient number, since it is larger than the sum of its proper divisors (1).

260381651 is an equidigital number, since it uses as much as digits as its factorization.

260381651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 260381651 is about 16136.3456519746. The cubic root of 260381651 is about 638.5625706870.

The spelling of 260381651 in words is "two hundred sixty million, three hundred eighty-one thousand, six hundred fifty-one".