258430191 has 16 divisors (see below), whose sum is σ = 363072000. Its totient is φ = 163055808.

The previous prime is 258430187. The next prime is 258430201. The reversal of 258430191 is 191034852.

It is not a de Polignac number, because 258430191 - 2² = 258430187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258430181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83235 + ... + 86283.

It is an arithmetic number, because the mean of its divisors is an integer number (22692000).

Almost surely, 2^258430191 is an apocalyptic number.

258430191 is a deficient number, since it is larger than the sum of its proper divisors (104641809).

258430191 is a wasteful number, since it uses less digits than its factorization.

258430191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 258430191 is about 16075.7640875947. The cubic root of 258430191 is about 636.9633087030.

The spelling of 258430191 in words is "two hundred fifty-eight million, four hundred thirty thousand, one hundred ninety-one".