233947257133 has 2 divisors, whose sum is σ = 233947257134. Its totient is φ = 233947257132.

The previous prime is 233947257107. The next prime is 233947257197. The reversal of 233947257133 is 331752749332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193738184649 + 40209072484 = 440157^2 + 200522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233947257133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233947254133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116973628566 + 116973628567.

It is an arithmetic number, because the mean of its divisors is an integer number (116973628567).

Almost surely, 2^233947257133 is an apocalyptic number.

It is an amenable number.

233947257133 is a deficient number, since it is larger than the sum of its proper divisors (1).

233947257133 is an equidigital number, since it uses as much as digits as its factorization.

233947257133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 49.

The spelling of 233947257133 in words is "two hundred thirty-three billion, nine hundred forty-seven million, two hundred fifty-seven thousand, one hundred thirty-three".