3205131258 has 64 divisors (see below), whose sum is σ = 7535001600. Its totient is φ = 908467056.

The previous prime is 3205131257. The next prime is 3205131271. The reversal of 3205131258 is 8521315023.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3205131257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255235 + ... + 267497.

It is an arithmetic number, because the mean of its divisors is an integer number (117734400).

Almost surely, 2^3205131258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3205131258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3767500800).

3205131258 is an abundant number, since it is smaller than the sum of its proper divisors (4329870342).

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

3205131258 is a wasteful number, since it uses less digits than its factorization.

3205131258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12416 (or 12402 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 3205131258 is about 56613.8786694570. The cubic root of 3205131258 is about 1474.3998336620.

The spelling of 3205131258 in words is "three billion, two hundred five million, one hundred thirty-one thousand, two hundred fifty-eight".