202603139 has 2 divisors, whose sum is σ = 202603140. Its totient is φ = 202603138.

The previous prime is 202603129. The next prime is 202603147. The reversal of 202603139 is 931306202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202603139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202603129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101301569 + 101301570.

It is an arithmetic number, because the mean of its divisors is an integer number (101301570).

Almost surely, 2^202603139 is an apocalyptic number.

202603139 is a deficient number, since it is larger than the sum of its proper divisors (1).

202603139 is an equidigital number, since it uses as much as digits as its factorization.

202603139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 202603139 is about 14233.8729444941. The cubic root of 202603139 is about 587.3298269165.

The spelling of 202603139 in words is "two hundred two million, six hundred three thousand, one hundred thirty-nine".