258140331 has 8 divisors (see below), whose sum is σ = 382430160. Its totient is φ = 172093536.

The previous prime is 258140303. The next prime is 258140353. The reversal of 258140331 is 133041852.

It is a happy number.

258140331 is a `hidden beast` number, since 258 + 1 + 403 + 3 + 1 = 666.

It is not a de Polignac number, because 258140331 - 2⁵ = 258140299 is a prime.

It is a super-2 number, since 2×258140331² = 133272860977579122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9560753 = 258140331 / (2 + 5 + 8 + 1 + 4 + 0 + 3 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 258140295 and 258140304.

It is not an unprimeable number, because it can be changed into a prime (258140371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4780350 + ... + 4780403.

It is an arithmetic number, because the mean of its divisors is an integer number (47803770).

Almost surely, 2^258140331 is an apocalyptic number.

258140331 is a deficient number, since it is larger than the sum of its proper divisors (124289829).

258140331 is an equidigital number, since it uses as much as digits as its factorization.

258140331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560762 (or 9560756 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 258140331 is about 16066.7461235933. The cubic root of 258140331 is about 636.7250764036.

The spelling of 258140331 in words is "two hundred fifty-eight million, one hundred forty thousand, three hundred thirty-one".