133351768 has 24 divisors (see below), whose sum is σ = 272986740. Its totient is φ = 60565200.

The previous prime is 133351759. The next prime is 133351781. The reversal of 133351768 is 867153331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107713 + ... + 108943.

Almost surely, 2^133351768 is an apocalyptic number.

It is an amenable number.

133351768 is an abundant number, since it is smaller than the sum of its proper divisors (139634972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133351768 is an equidigital number, since it uses as much as digits as its factorization.

133351768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 1244 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 133351768 is about 11547.8036006853. The cubic root of 133351768 is about 510.8964982756.

The spelling of 133351768 in words is "one hundred thirty-three million, three hundred fifty-one thousand, seven hundred sixty-eight".