134433621 has 32 divisors (see below), whose sum is σ = 228199680. Its totient is φ = 76621248.

The previous prime is 134433529. The next prime is 134433659. The reversal of 134433621 is 126334431.

134433621 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 33 + 621 = 666.

It is not a de Polignac number, because 134433621 - 2¹⁵ = 134400853 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 (134433421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104635 + ... + 105911.

It is an arithmetic number, because the mean of its divisors is an integer number (7131240).

Almost surely, 2^134433621 is an apocalyptic number.

It is an amenable number.

134433621 is a deficient number, since it is larger than the sum of its proper divisors (93766059).

134433621 is a wasteful number, since it uses less digits than its factorization.

134433621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1844 counting only the distinct ones).

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

The square root of 134433621 is about 11594.5513496642. The cubic root of 134433621 is about 512.2743750848.

The spelling of 134433621 in words is "one hundred thirty-four million, four hundred thirty-three thousand, six hundred twenty-one".