233997539 has 2 divisors, whose sum is σ = 233997540. Its totient is φ = 233997538.

The previous prime is 233997479. The next prime is 233997557. The reversal of 233997539 is 935799332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233997539 - 2¹⁶ = 233932003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233997739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116998769 + 116998770.

It is an arithmetic number, because the mean of its divisors is an integer number (116998770).

Almost surely, 2^233997539 is an apocalyptic number.

233997539 is a deficient number, since it is larger than the sum of its proper divisors (1).

233997539 is an equidigital number, since it uses as much as digits as its factorization.

233997539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1377810, while the sum is 50.

The square root of 233997539 is about 15296.9781002654. The cubic root of 233997539 is about 616.2218544720.

The spelling of 233997539 in words is "two hundred thirty-three million, nine hundred ninety-seven thousand, five hundred thirty-nine".