201439933 has 2 divisors, whose sum is σ = 201439934. Its totient is φ = 201439932.

The previous prime is 201439913. The next prime is 201440017. The reversal of 201439933 is 339934102.

201439933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158432569 + 43007364 = 12587^2 + 6558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201439933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201439913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100719966 + 100719967.

It is an arithmetic number, because the mean of its divisors is an integer number (100719967).

Almost surely, 2^201439933 is an apocalyptic number.

It is an amenable number.

201439933 is a deficient number, since it is larger than the sum of its proper divisors (1).

201439933 is an equidigital number, since it uses as much as digits as its factorization.

201439933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 201439933 is about 14192.9536390422. The cubic root of 201439933 is about 586.2036561065.

The spelling of 201439933 in words is "two hundred one million, four hundred thirty-nine thousand, nine hundred thirty-three".