203149039 has 2 divisors, whose sum is σ = 203149040. Its totient is φ = 203149038.

The previous prime is 203149013. The next prime is 203149043. The reversal of 203149039 is 930941302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203149039 - 2¹⁵ = 203116271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203149039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203149139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101574519 + 101574520.

It is an arithmetic number, because the mean of its divisors is an integer number (101574520).

Almost surely, 2^203149039 is an apocalyptic number.

203149039 is a deficient number, since it is larger than the sum of its proper divisors (1).

203149039 is an equidigital number, since it uses as much as digits as its factorization.

203149039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 203149039 is about 14253.0361326982. The cubic root of 203149039 is about 587.8568602399.

The spelling of 203149039 in words is "two hundred three million, one hundred forty-nine thousand, thirty-nine".