203426497 has 2 divisors, whose sum is σ = 203426498. Its totient is φ = 203426496.

The previous prime is 203426479. The next prime is 203426533. The reversal of 203426497 is 794624302.

Together with previous prime (203426479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179131456 + 24295041 = 13384^2 + 4929^2 .

It is a cyclic number.

It is not a de Polignac number, because 203426497 - 2¹⁹ = 202902209 is a prime.

It is not a weakly prime, because it can be changed into another prime (203426417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101713248 + 101713249.

It is an arithmetic number, because the mean of its divisors is an integer number (101713249).

Almost surely, 2^203426497 is an apocalyptic number.

It is an amenable number.

203426497 is a deficient number, since it is larger than the sum of its proper divisors (1).

203426497 is an equidigital number, since it uses as much as digits as its factorization.

203426497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 203426497 is about 14262.7661061941. The cubic root of 203426497 is about 588.1243672716.

The spelling of 203426497 in words is "two hundred three million, four hundred twenty-six thousand, four hundred ninety-seven".