205536142 has 32 divisors (see below), whose sum is σ = 368769024. Its totient is φ = 84004800.

The previous prime is 205536131. The next prime is 205536151. The reversal of 205536142 is 241635502.

It is a self number, because there is not a number n which added to its sum of digits gives 205536142.

It is a congruent 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, 138042 + ... + 139522.

It is an arithmetic number, because the mean of its divisors is an integer number (11524032).

Almost surely, 2^205536142 is an apocalyptic number.

205536142 is a deficient number, since it is larger than the sum of its proper divisors (163232882).

205536142 is a wasteful number, since it uses less digits than its factorization.

205536142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 205536142 is about 14336.5317284202. The cubic root of 205536142 is about 590.1504375552.

The spelling of 205536142 in words is "two hundred five million, five hundred thirty-six thousand, one hundred forty-two".