206131304 has 64 divisors (see below), whose sum is σ = 425952000. Its totient is φ = 93139200.

The previous prime is 206131291. The next prime is 206131319. The reversal of 206131304 is 403131602.

It is a super-2 number, since 2×206131304² = 84980228977480832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444977 + ... + 445439.

It is an arithmetic number, because the mean of its divisors is an integer number (6655500).

Almost surely, 2^206131304 is an apocalyptic number.

It is an amenable number.

206131304 is an abundant number, since it is smaller than the sum of its proper divisors (219820696).

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

206131304 is a wasteful number, since it uses less digits than its factorization.

206131304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 206131304 is about 14357.2735573297. The cubic root of 206131304 is about 590.7195128801.

Adding to 206131304 its reverse (403131602), we get a palindrome (609262906).

The spelling of 206131304 in words is "two hundred six million, one hundred thirty-one thousand, three hundred four".