10205239 has 16 divisors (see below), whose sum is σ = 11534976. Its totient is φ = 8949600.

The previous prime is 10205227. The next prime is 10205243. The reversal of 10205239 is 93250201.

It is not a de Polignac number, because 10205239 - 2⁵ = 10205207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44844 + ... + 45070.

It is an arithmetic number, because the mean of its divisors is an integer number (720936).

Almost surely, 2^10205239 is an apocalyptic number.

10205239 is a deficient number, since it is larger than the sum of its proper divisors (1329737).

10205239 is a wasteful number, since it uses less digits than its factorization.

10205239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

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

The square root of 10205239 is about 3194.5639765076. The cubic root of 10205239 is about 216.9074123476.

The spelling of 10205239 in words is "ten million, two hundred five thousand, two hundred thirty-nine".