134471621 has 8 divisors (see below), whose sum is σ = 139487040. Its totient is φ = 129542112.

The previous prime is 134471611. The next prime is 134471627. The reversal of 134471621 is 126174431.

It is a happy number.

134471621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 134471621 - 2¹⁰ = 134470597 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 (134471627) 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, 18281 + ... + 24558.

It is an arithmetic number, because the mean of its divisors is an integer number (17435880).

Almost surely, 2^134471621 is an apocalyptic number.

It is an amenable number.

134471621 is a deficient number, since it is larger than the sum of its proper divisors (5015419).

134471621 is an equidigital number, since it uses as much as digits as its factorization.

134471621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42955.

The product of its digits is 4032, while the sum is 29.

The square root of 134471621 is about 11596.1899346294. The cubic root of 134471621 is about 512.3226382901.

The spelling of 134471621 in words is "one hundred thirty-four million, four hundred seventy-one thousand, six hundred twenty-one".