33135423 has 8 divisors (see below), whose sum is σ = 45120768. Its totient is φ = 21620184.

The previous prime is 33135419. The next prime is 33135451. The reversal of 33135423 is 32453133.

It is a happy number.

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

It is not a de Polignac number, because 33135423 - 2² = 33135419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33135393 and 33135402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33135463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117361 + ... + 117642.

It is an arithmetic number, because the mean of its divisors is an integer number (5640096).

Almost surely, 2^33135423 is an apocalyptic number.

33135423 is a deficient number, since it is larger than the sum of its proper divisors (11985345).

33135423 is a wasteful number, since it uses less digits than its factorization.

33135423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235053.

The product of its digits is 3240, while the sum is 24.

The square root of 33135423 is about 5756.3376377693. The cubic root of 33135423 is about 321.1915957152.

Adding to 33135423 its reverse (32453133), we get a palindrome (65588556).

The spelling of 33135423 in words is "thirty-three million, one hundred thirty-five thousand, four hundred twenty-three".