206145502 has 16 divisors (see below), whose sum is σ = 329584032. Its totient is φ = 96364800.

The previous prime is 206145491. The next prime is 206145521. The reversal of 206145502 is 205541602.

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, 14943 + ... + 25210.

It is an arithmetic number, because the mean of its divisors is an integer number (20599002).

Almost surely, 2^206145502 is an apocalyptic number.

206145502 is a deficient number, since it is larger than the sum of its proper divisors (123438530).

206145502 is a wasteful number, since it uses less digits than its factorization.

206145502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40323.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 206145502 is about 14357.7680020259. The cubic root of 206145502 is about 590.7330751790.

The spelling of 206145502 in words is "two hundred six million, one hundred forty-five thousand, five hundred two".