133423474 has 4 divisors (see below), whose sum is σ = 200135214. Its totient is φ = 66711736.

The previous prime is 133423469. The next prime is 133423501. The reversal of 133423474 is 474324331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116964225 + 16459249 = 10815^2 + 4057^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33355867 + ... + 33355870.

Almost surely, 2^133423474 is an apocalyptic number.

133423474 is a deficient number, since it is larger than the sum of its proper divisors (66711740).

133423474 is an equidigital number, since it uses as much as digits as its factorization.

133423474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66711739.

The product of its digits is 24192, while the sum is 31.

The square root of 133423474 is about 11550.9079296824. The cubic root of 133423474 is about 510.9880550668.

The spelling of 133423474 in words is "one hundred thirty-three million, four hundred twenty-three thousand, four hundred seventy-four".