265135019 has 2 divisors, whose sum is σ = 265135020. Its totient is φ = 265135018.

The previous prime is 265135001. The next prime is 265135061. The reversal of 265135019 is 910531562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265135019 - 2²⁴ = 248357803 is a prime.

It is a super-2 number, since 2×265135019² = 140593156600260722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265131019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132567509 + 132567510.

It is an arithmetic number, because the mean of its divisors is an integer number (132567510).

Almost surely, 2^265135019 is an apocalyptic number.

265135019 is a deficient number, since it is larger than the sum of its proper divisors (1).

265135019 is an equidigital number, since it uses as much as digits as its factorization.

265135019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 265135019 is about 16282.9671436136. The cubic root of 265135019 is about 642.4248981847.

The spelling of 265135019 in words is "two hundred sixty-five million, one hundred thirty-five thousand, nineteen".