206263145 has 16 divisors (see below), whose sum is σ = 284230080. Its totient is φ = 142113600.

The previous prime is 206263139. The next prime is 206263157. The reversal of 206263145 is 541362602.

206263145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206263145 - 2⁴ = 206263129 is a prime.

It is a Curzon number.

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, 97646 + ... + 99735.

It is an arithmetic number, because the mean of its divisors is an integer number (17764380).

Almost surely, 2^206263145 is an apocalyptic number.

It is an amenable number.

206263145 is a deficient number, since it is larger than the sum of its proper divisors (77966935).

206263145 is a wasteful number, since it uses less digits than its factorization.

206263145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197416.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 206263145 is about 14361.8642592109. The cubic root of 206263145 is about 590.8454268833.

The spelling of 206263145 in words is "two hundred six million, two hundred sixty-three thousand, one hundred forty-five".