260194019 has 2 divisors, whose sum is σ = 260194020. Its totient is φ = 260194018.

The previous prime is 260194001. The next prime is 260194043. The reversal of 260194019 is 910491062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260194019 - 2¹⁶ = 260128483 is a prime.

It is a super-2 number, since 2×260194019² = 135401855046744722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260194049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130097009 + 130097010.

It is an arithmetic number, because the mean of its divisors is an integer number (130097010).

Almost surely, 2^260194019 is an apocalyptic number.

260194019 is a deficient number, since it is larger than the sum of its proper divisors (1).

260194019 is an equidigital number, since it uses as much as digits as its factorization.

260194019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 260194019 is about 16130.5306484319. The cubic root of 260194019 is about 638.4091502969.

The spelling of 260194019 in words is "two hundred sixty million, one hundred ninety-four thousand, nineteen".