206012645 has 8 divisors (see below), whose sum is σ = 250344960. Its totient is φ = 162723600.

The previous prime is 206012627. The next prime is 206012683. The reversal of 206012645 is 546210602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206012645 - 2²⁰ = 204964069 is a prime.

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, 260381 + ... + 261170.

It is an arithmetic number, because the mean of its divisors is an integer number (31293120).

Almost surely, 2^206012645 is an apocalyptic number.

It is an amenable number.

206012645 is a deficient number, since it is larger than the sum of its proper divisors (44332315).

206012645 is an equidigital number, since it uses as much as digits as its factorization.

206012645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521635.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 206012645 is about 14353.1405970958. The cubic root of 206012645 is about 590.6061423577.

The spelling of 206012645 in words is "two hundred six million, twelve thousand, six hundred forty-five".