203252261 has 2 divisors, whose sum is σ = 203252262. Its totient is φ = 203252260.

The previous prime is 203252251. The next prime is 203252263. The reversal of 203252261 is 162252302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165920161 + 37332100 = 12881^2 + 6110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203252261 is a prime.

It is a super-2 number, since 2×203252261² = 82622963203224242, which contains 22 as substring.

Together with 203252263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203252263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101626130 + 101626131.

It is an arithmetic number, because the mean of its divisors is an integer number (101626131).

Almost surely, 2^203252261 is an apocalyptic number.

It is an amenable number.

203252261 is a deficient number, since it is larger than the sum of its proper divisors (1).

203252261 is an equidigital number, since it uses as much as digits as its factorization.

203252261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 203252261 is about 14256.6567258947. The cubic root of 203252261 is about 587.9564086416.

The spelling of 203252261 in words is "two hundred three million, two hundred fifty-two thousand, two hundred sixty-one".