258292091 has 2 divisors, whose sum is σ = 258292092. Its totient is φ = 258292090.

The previous prime is 258292081. The next prime is 258292127. The reversal of 258292091 is 190292852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258292091 - 2¹⁴ = 258275707 is a prime.

It is not a weakly prime, because it can be changed into another prime (258292051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129146045 + 129146046.

It is an arithmetic number, because the mean of its divisors is an integer number (129146046).

Almost surely, 2^258292091 is an apocalyptic number.

258292091 is a deficient number, since it is larger than the sum of its proper divisors (1).

258292091 is an equidigital number, since it uses as much as digits as its factorization.

258292091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 258292091 is about 16071.4682278876. The cubic root of 258292091 is about 636.8498282745.

The spelling of 258292091 in words is "two hundred fifty-eight million, two hundred ninety-two thousand, ninety-one".