206131430 has 16 divisors (see below), whose sum is σ = 373315824. Its totient is φ = 81946080.

The previous prime is 206131421. The next prime is 206131441. The reversal of 206131430 is 34131602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61601 + ... + 64860.

It is an arithmetic number, because the mean of its divisors is an integer number (23332239).

Almost surely, 2^206131430 is an apocalyptic number.

206131430 is a deficient number, since it is larger than the sum of its proper divisors (167184394).

206131430 is a wasteful number, since it uses less digits than its factorization.

206131430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126631.

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

The square root of 206131430 is about 14357.2779453488. The cubic root of 206131430 is about 590.7196332413.

The spelling of 206131430 in words is "two hundred six million, one hundred thirty-one thousand, four hundred thirty".