203139 has 6 divisors (see below), whose sum is σ = 293436. Its totient is φ = 135420.

The previous prime is 203117. The next prime is 203141. The reversal of 203139 is 931302.

It is not a de Polignac number, because 203139 - 2⁷ = 203011 is a prime.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203139.

It is not an unprimeable number, because it can be changed into a prime (203039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11277 + ... + 11294.

It is an arithmetic number, because the mean of its divisors is an integer number (48906).

2²⁰³¹³⁹ is an apocalyptic number.

203139 is a deficient number, since it is larger than the sum of its proper divisors (90297).

203139 is a wasteful number, since it uses less digits than its factorization.

203139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22577 (or 22574 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 203139 is about 450.7094407709. The cubic root of 203139 is about 58.7847176722.

The spelling of 203139 in words is "two hundred three thousand, one hundred thirty-nine".