200105139 has 32 divisors (see below), whose sum is σ = 298234944. Its totient is φ = 118540800.

The previous prime is 200105123. The next prime is 200105141. The reversal of 200105139 is 931501002.

It is not a de Polignac number, because 200105139 - 2⁴ = 200105123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200105189) 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, 145057 + ... + 146429.

It is an arithmetic number, because the mean of its divisors is an integer number (9319842).

Almost surely, 2^200105139 is an apocalyptic number.

200105139 is a deficient number, since it is larger than the sum of its proper divisors (98129805).

200105139 is a wasteful number, since it uses less digits than its factorization.

200105139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 200105139 is about 14145.8523603210. The cubic root of 200105139 is about 584.9060057911.

The spelling of 200105139 in words is "two hundred million, one hundred five thousand, one hundred thirty-nine".