205112402 has 16 divisors (see below), whose sum is σ = 338612832. Its totient is φ = 92406720.

The previous prime is 205112387. The next prime is 205112437. The reversal of 205112402 is 204211502.

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, 38768 + ... + 43739.

It is an arithmetic number, because the mean of its divisors is an integer number (21163302).

Almost surely, 2^205112402 is an apocalyptic number.

205112402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205112402 is a deficient number, since it is larger than the sum of its proper divisors (133500430).

205112402 is a wasteful number, since it uses less digits than its factorization.

205112402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82633.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 205112402 is about 14321.7457734733. The cubic root of 205112402 is about 589.7446007486.

Adding to 205112402 its reverse (204211502), we get a palindrome (409323904).

The spelling of 205112402 in words is "two hundred five million, one hundred twelve thousand, four hundred two".