134223621 has 8 divisors (see below), whose sum is σ = 204531264. Its totient is φ = 76699200.

The previous prime is 134223601. The next prime is 134223671. The reversal of 134223621 is 126322431.

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

It is not a de Polignac number, because 134223621 - 2⁵ = 134223589 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 134223591 and 134223600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134223601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195780 + ... + 3195821.

It is an arithmetic number, because the mean of its divisors is an integer number (25566408).

Almost surely, 2^134223621 is an apocalyptic number.

It is an amenable number.

134223621 is a deficient number, since it is larger than the sum of its proper divisors (70307643).

134223621 is an equidigital number, since it uses as much as digits as its factorization.

134223621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391611.

The product of its digits is 1728, while the sum is 24.

The square root of 134223621 is about 11585.4918324601. The cubic root of 134223621 is about 512.0074932273.

The spelling of 134223621 in words is "one hundred thirty-four million, two hundred twenty-three thousand, six hundred twenty-one".