258103212 has 12 divisors (see below), whose sum is σ = 602240856. Its totient is φ = 86034400.

The previous prime is 258103207. The next prime is 258103213. The reversal of 258103212 is 212301852.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (258103213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10754289 + ... + 10754312.

It is an arithmetic number, because the mean of its divisors is an integer number (50186738).

Almost surely, 2^258103212 is an apocalyptic number.

It is an amenable number.

258103212 is an abundant number, since it is smaller than the sum of its proper divisors (344137644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258103212 is a wasteful number, since it uses less digits than its factorization.

258103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21508608 (or 21508606 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 258103212 is about 16065.5909321755. The cubic root of 258103212 is about 636.6945558841.

The spelling of 258103212 in words is "two hundred fifty-eight million, one hundred three thousand, two hundred twelve".