134229621 has 4 divisors (see below), whose sum is σ = 178972832. Its totient is φ = 89486412.

The previous prime is 134229619. The next prime is 134229631. The reversal of 134229621 is 126922431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 134229621 - 2¹ = 134229619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134229631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22371601 + ... + 22371606.

It is an arithmetic number, because the mean of its divisors is an integer number (44743208).

Almost surely, 2^134229621 is an apocalyptic number.

It is an amenable number.

134229621 is a deficient number, since it is larger than the sum of its proper divisors (44743211).

134229621 is an equidigital number, since it uses as much as digits as its factorization.

134229621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44743210.

The product of its digits is 5184, while the sum is 30.

The square root of 134229621 is about 11585.7507741190. The cubic root of 134229621 is about 512.0151222849.

The spelling of 134229621 in words is "one hundred thirty-four million, two hundred twenty-nine thousand, six hundred twenty-one".