133811274 has 8 divisors (see below), whose sum is σ = 267622560. Its totient is φ = 44603756.

The previous prime is 133811219. The next prime is 133811287. The reversal of 133811274 is 472118331.

It is a sphenic number, since it is the product of 3 distinct primes.

133811274 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11150934 + ... + 11150945.

It is an arithmetic number, because the mean of its divisors is an integer number (33452820).

Almost surely, 2^133811274 is an apocalyptic number.

133811274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133811274 is a wasteful number, since it uses less digits than its factorization.

133811274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22301884.

The product of its digits is 4032, while the sum is 30.

The square root of 133811274 is about 11567.6823089156. The cubic root of 133811274 is about 511.4826444214.

The spelling of 133811274 in words is "one hundred thirty-three million, eight hundred eleven thousand, two hundred seventy-four".