134621 has 4 divisors (see below), whose sum is σ = 136032. Its totient is φ = 133212.

The previous prime is 134609. The next prime is 134639. The reversal of 134621 is 126431.

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 a cyclic number.

It is not a de Polignac number, because 134621 - 2¹⁰ = 133597 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 6⁴ + 4³ + 2¹⁷ + 1 .

It is a Duffinian number.

It is a plaindrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 134621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134681) 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, 551 + ... + 756.

It is an arithmetic number, because the mean of its divisors is an integer number (34008).

2¹³⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

134621 is a deficient number, since it is larger than the sum of its proper divisors (1411).

134621 is a wasteful number, since it uses less digits than its factorization.

134621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410.

The product of its digits is 144, while the sum is 17.

The square root of 134621 is about 366.9073452522. The cubic root of 134621 is about 51.2512274146.

The spelling of 134621 in words is "one hundred thirty-four thousand, six hundred twenty-one".