260346139 has 2 divisors, whose sum is σ = 260346140. Its totient is φ = 260346138.

The previous prime is 260346103. The next prime is 260346181. The reversal of 260346139 is 931643062.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260346139 is a prime.

It is a super-2 number, since 2×260346139² = 135560224184414642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (260346239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130173069 + 130173070.

It is an arithmetic number, because the mean of its divisors is an integer number (130173070).

Almost surely, 2^260346139 is an apocalyptic number.

260346139 is a deficient number, since it is larger than the sum of its proper divisors (1).

260346139 is an equidigital number, since it uses as much as digits as its factorization.

260346139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 260346139 is about 16135.2452413962. The cubic root of 260346139 is about 638.5335393723.

The spelling of 260346139 in words is "two hundred sixty million, three hundred forty-six thousand, one hundred thirty-nine".