134633421 has 96 divisors (see below), whose sum is σ = 242161920. Its totient is φ = 73903104.

The previous prime is 134633413. The next prime is 134633423. The reversal of 134633421 is 124336431.

134633421 is a `hidden beast` number, since 1 + 3 + 4 + 633 + 4 + 21 = 666.

It is not a de Polignac number, because 134633421 - 2³ = 134633413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134633423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1235115 + ... + 1235223.

It is an arithmetic number, because the mean of its divisors is an integer number (2522520).

Almost surely, 2^134633421 is an apocalyptic number.

It is an amenable number.

134633421 is a deficient number, since it is larger than the sum of its proper divisors (107528499).

134633421 is a wasteful number, since it uses less digits than its factorization.

134633421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 165 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 134633421 is about 11603.1642666990. The cubic root of 134633421 is about 512.5280362216.

Adding to 134633421 its reverse (124336431), we get a palindrome (258969852).

The spelling of 134633421 in words is "one hundred thirty-four million, six hundred thirty-three thousand, four hundred twenty-one".