205101430 has 16 divisors (see below), whose sum is σ = 390899520. Its totient is φ = 77214592.

The previous prime is 205101401. The next prime is 205101431. The reversal of 205101430 is 34101502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205101431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603070 + ... + 603409.

It is an arithmetic number, because the mean of its divisors is an integer number (24431220).

Almost surely, 2^205101430 is an apocalyptic number.

205101430 is a deficient number, since it is larger than the sum of its proper divisors (185798090).

205101430 is a wasteful number, since it uses less digits than its factorization.

205101430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206503.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 205101430 is about 14321.3627144905. The cubic root of 205101430 is about 589.7340848996.

Adding to 205101430 its reverse (34101502), we get a palindrome (239202932).

The spelling of 205101430 in words is "two hundred five million, one hundred one thousand, four hundred thirty".