203212939 has 2 divisors, whose sum is σ = 203212940. Its totient is φ = 203212938.

The previous prime is 203212927. The next prime is 203212957. The reversal of 203212939 is 939212302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203212939 - 2⁷ = 203212811 is a prime.

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 203212939.

It is not a weakly prime, because it can be changed into another prime (203212979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606469 + 101606470.

It is an arithmetic number, because the mean of its divisors is an integer number (101606470).

Almost surely, 2^203212939 is an apocalyptic number.

203212939 is a deficient number, since it is larger than the sum of its proper divisors (1).

203212939 is an equidigital number, since it uses as much as digits as its factorization.

203212939 is an evil number, because the sum of its binary digits is even.

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

The square root of 203212939 is about 14255.2775841090. The cubic root of 203212939 is about 587.9184900589.

The spelling of 203212939 in words is "two hundred three million, two hundred twelve thousand, nine hundred thirty-nine".