203253213 has 16 divisors (see below), whose sum is σ = 275613696. Its totient is φ = 133217280.

The previous prime is 203253163. The next prime is 203253233. The reversal of 203253213 is 312352302.

It is a de Polignac number, because none of the positive numbers 2^k-203253213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203253213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203253233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40693 + ... + 45413.

It is an arithmetic number, because the mean of its divisors is an integer number (17225856).

Almost surely, 2^203253213 is an apocalyptic number.

It is an amenable number.

203253213 is a deficient number, since it is larger than the sum of its proper divisors (72360483).

203253213 is a wasteful number, since it uses less digits than its factorization.

203253213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 203253213 is about 14256.6901137676. The cubic root of 203253213 is about 587.9573266037.

The spelling of 203253213 in words is "two hundred three million, two hundred fifty-three thousand, two hundred thirteen".