239943133 has 2 divisors, whose sum is σ = 239943134. Its totient is φ = 239943132.

The previous prime is 239943127. The next prime is 239943149. The reversal of 239943133 is 331349932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206152164 + 33790969 = 14358^2 + 5813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239943133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239943092 and 239943101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239943103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119971566 + 119971567.

It is an arithmetic number, because the mean of its divisors is an integer number (119971567).

Almost surely, 2^239943133 is an apocalyptic number.

It is an amenable number.

239943133 is a deficient number, since it is larger than the sum of its proper divisors (1).

239943133 is an equidigital number, since it uses as much as digits as its factorization.

239943133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 37.

The square root of 239943133 is about 15490.0979015628. The cubic root of 239943133 is about 621.3974142606.

The spelling of 239943133 in words is "two hundred thirty-nine million, nine hundred forty-three thousand, one hundred thirty-three".