133423534 has 8 divisors (see below), whose sum is σ = 200554560. Its totient is φ = 66572016.

The previous prime is 133423513. The next prime is 133423541. The reversal of 133423534 is 435324331.

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

It is a congruent 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, 68679 + ... + 70594.

It is an arithmetic number, because the mean of its divisors is an integer number (25069320).

Almost surely, 2^133423534 is an apocalyptic number.

133423534 is a deficient number, since it is larger than the sum of its proper divisors (67131026).

133423534 is a wasteful number, since it uses less digits than its factorization.

133423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139754.

The product of its digits is 12960, while the sum is 28.

The square root of 133423534 is about 11550.9105268806. The cubic root of 133423534 is about 510.9881316632.

Adding to 133423534 its reverse (435324331), we get a palindrome (568747865).

The spelling of 133423534 in words is "one hundred thirty-three million, four hundred twenty-three thousand, five hundred thirty-four".