133440259 has 12 divisors (see below), whose sum is σ = 142590448. Its totient is φ = 124848000.

The previous prime is 133440233. The next prime is 133440271. The reversal of 133440259 is 952044331.

It is a de Polignac number, because none of the positive numbers 2^k-133440259 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133440259.

It is not an unprimeable number, because it can be changed into a prime (133443259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51034 + ... + 53584.

Almost surely, 2^133440259 is an apocalyptic number.

133440259 is a deficient number, since it is larger than the sum of its proper divisors (9150189).

133440259 is a wasteful number, since it uses less digits than its factorization.

133440259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 133440259 is about 11551.6344730951. The cubic root of 133440259 is about 511.0094820181.

The spelling of 133440259 in words is "one hundred thirty-three million, four hundred forty thousand, two hundred fifty-nine".