205902130 has 64 divisors (see below), whose sum is σ = 454989312. Its totient is φ = 65479680.

The previous prime is 205902091. The next prime is 205902131. The reversal of 205902130 is 31209502.

It is not an unprimeable number, because it can be changed into a prime (205902131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83272 + ... + 85708.

It is an arithmetic number, because the mean of its divisors is an integer number (7109208).

Almost surely, 2^205902130 is an apocalyptic number.

205902130 is an abundant number, since it is smaller than the sum of its proper divisors (249087182).

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

205902130 is a wasteful number, since it uses less digits than its factorization.

205902130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 205902130 is about 14349.2902263492. The cubic root of 205902130 is about 590.5005137076.

The spelling of 205902130 in words is "two hundred five million, nine hundred two thousand, one hundred thirty".