133423044 has 24 divisors (see below), whose sum is σ = 312026400. Its totient is φ = 44373504.

The previous prime is 133423027. The next prime is 133423051. The reversal of 133423044 is 440324331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6994 + ... + 17769.

It is an arithmetic number, because the mean of its divisors is an integer number (13001100).

Almost surely, 2^133423044 is an apocalyptic number.

It is an amenable number.

133423044 is an abundant number, since it is smaller than the sum of its proper divisors (178603356).

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

133423044 is a wasteful number, since it uses less digits than its factorization.

133423044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25219 (or 25217 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 133423044 is about 11550.8893164120. The cubic root of 133423044 is about 510.9875061251.

Adding to 133423044 its reverse (440324331), we get a palindrome (573747375).

The spelling of 133423044 in words is "one hundred thirty-three million, four hundred twenty-three thousand, forty-four".