240123133 has 2 divisors, whose sum is σ = 240123134. Its totient is φ = 240123132.

The previous prime is 240123089. The next prime is 240123139. The reversal of 240123133 is 331321042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161747524 + 78375609 = 12718^2 + 8853^2 .

It is a cyclic number.

It is not a de Polignac number, because 240123133 - 2¹⁷ = 239992061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240123133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240123139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120061566 + 120061567.

It is an arithmetic number, because the mean of its divisors is an integer number (120061567).

Almost surely, 2^240123133 is an apocalyptic number.

It is an amenable number.

240123133 is a deficient number, since it is larger than the sum of its proper divisors (1).

240123133 is an equidigital number, since it uses as much as digits as its factorization.

240123133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 240123133 is about 15495.9069757146. The cubic root of 240123133 is about 621.5527615927.

Adding to 240123133 its reverse (331321042), we get a palindrome (571444175).

The spelling of 240123133 in words is "two hundred forty million, one hundred twenty-three thousand, one hundred thirty-three".