258385149 has 24 divisors (see below), whose sum is σ = 408189600. Its totient is φ = 156198240.

The previous prime is 258385147. The next prime is 258385163. The reversal of 258385149 is 941583852.

258385149 is a `hidden beast` number, since 258 + 385 + 14 + 9 = 666.

It is not a de Polignac number, because 258385149 - 2¹ = 258385147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258385147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38367 + ... + 44595.

It is an arithmetic number, because the mean of its divisors is an integer number (17007900).

Almost surely, 2^258385149 is an apocalyptic number.

It is an amenable number.

258385149 is a deficient number, since it is larger than the sum of its proper divisors (149804451).

258385149 is a wasteful number, since it uses less digits than its factorization.

258385149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665 (or 6662 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 258385149 is about 16074.3630978027. The cubic root of 258385149 is about 636.9263009419.

The spelling of 258385149 in words is "two hundred fifty-eight million, three hundred eighty-five thousand, one hundred forty-nine".