203091349 has 2 divisors, whose sum is σ = 203091350. Its totient is φ = 203091348.

The previous prime is 203091347. The next prime is 203091353. The reversal of 203091349 is 943190302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109872324 + 93219025 = 10482^2 + 9655^2 .

It is a cyclic number.

It is not a de Polignac number, because 203091349 - 2¹ = 203091347 is a prime.

Together with 203091347, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203091349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203091347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101545674 + 101545675.

It is an arithmetic number, because the mean of its divisors is an integer number (101545675).

Almost surely, 2^203091349 is an apocalyptic number.

It is an amenable number.

203091349 is a deficient number, since it is larger than the sum of its proper divisors (1).

203091349 is an equidigital number, since it uses as much as digits as its factorization.

203091349 is an odious number, because the sum of its binary digits is odd.

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

The square root of 203091349 is about 14251.0122096643. The cubic root of 203091349 is about 587.8012086960.

The spelling of 203091349 in words is "two hundred three million, ninety-one thousand, three hundred forty-nine".