206391150 has 72 divisors (see below), whose sum is σ = 633728784. Its totient is φ = 47174400.

The previous prime is 206391131. The next prime is 206391151. The reversal of 206391150 is 51193602.

206391150 is a `hidden beast` number, since 20 + 639 + 1 + 1 + 5 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206391151) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29611 + ... + 35910.

Almost surely, 2^206391150 is an apocalyptic number.

206391150 is an abundant number, since it is smaller than the sum of its proper divisors (427337634).

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

206391150 is a wasteful number, since it uses less digits than its factorization.

206391150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65546 (or 65538 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 206391150 is about 14366.3199880832. The cubic root of 206391150 is about 590.9676260106.

The spelling of 206391150 in words is "two hundred six million, three hundred ninety-one thousand, one hundred fifty".