203442269 has 2 divisors, whose sum is σ = 203442270. Its totient is φ = 203442268.

The previous prime is 203442263. The next prime is 203442299. The reversal of 203442269 is 962244302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152819044 + 50623225 = 12362^2 + 7115^2 .

It is a cyclic number.

It is not a de Polignac number, because 203442269 - 2²⁰ = 202393693 is a prime.

It is a super-2 number, since 2×203442269² = 82777513631736722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203442263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101721134 + 101721135.

It is an arithmetic number, because the mean of its divisors is an integer number (101721135).

Almost surely, 2^203442269 is an apocalyptic number.

It is an amenable number.

203442269 is a deficient number, since it is larger than the sum of its proper divisors (1).

203442269 is an equidigital number, since it uses as much as digits as its factorization.

203442269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 203442269 is about 14263.3190036541. The cubic root of 203442269 is about 588.1395663041.

The spelling of 203442269 in words is "two hundred three million, four hundred forty-two thousand, two hundred sixty-nine".