133474390 has 32 divisors (see below), whose sum is σ = 275514624. Its totient is φ = 45606240.

The previous prime is 133474379. The next prime is 133474417. The reversal of 133474390 is 93474331.

It is a happy number.

133474390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18385 + ... + 24595.

It is an arithmetic number, because the mean of its divisors is an integer number (8609832).

Almost surely, 2^133474390 is an apocalyptic number.

133474390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133474390 is an abundant number, since it is smaller than the sum of its proper divisors (142040234).

133474390 is a wasteful number, since it uses less digits than its factorization.

133474390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 133474390 is about 11553.1117020481. Note that the first 3 decimals coincide. The cubic root of 133474390 is about 511.0530465264.

The spelling of 133474390 in words is "one hundred thirty-three million, four hundred seventy-four thousand, three hundred ninety".