203057139 has 8 divisors (see below), whose sum is σ = 270846352. Its totient is φ = 135319680.

The previous prime is 203057111. The next prime is 203057189. The reversal of 203057139 is 931750302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203057139 - 2⁸ = 203056883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203057189) 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, 2602 + ... + 20319.

It is an arithmetic number, because the mean of its divisors is an integer number (33855794).

Almost surely, 2^203057139 is an apocalyptic number.

203057139 is a deficient number, since it is larger than the sum of its proper divisors (67789213).

203057139 is a wasteful number, since it uses less digits than its factorization.

203057139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25877.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 203057139 is about 14249.8118934953. The cubic root of 203057139 is about 587.7682025165.

The spelling of 203057139 in words is "two hundred three million, fifty-seven thousand, one hundred thirty-nine".