258135019 has 2 divisors, whose sum is σ = 258135020. Its totient is φ = 258135018.

The previous prime is 258134927. The next prime is 258135029. The reversal of 258135019 is 910531852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258135019 - 2¹¹ = 258132971 is a prime.

It is a super-2 number, since 2×258135019² = 133267376068260722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258135029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129067509 + 129067510.

It is an arithmetic number, because the mean of its divisors is an integer number (129067510).

Almost surely, 2^258135019 is an apocalyptic number.

258135019 is a deficient number, since it is larger than the sum of its proper divisors (1).

258135019 is an equidigital number, since it uses as much as digits as its factorization.

258135019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 258135019 is about 16066.5808123571. The cubic root of 258135019 is about 636.7207088738.

The spelling of 258135019 in words is "two hundred fifty-eight million, one hundred thirty-five thousand, nineteen".