134659421 has 4 divisors (see below), whose sum is σ = 145017852. Its totient is φ = 124300992.

The previous prime is 134659387. The next prime is 134659423. The reversal of 134659421 is 124956431.

134659421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124956431 = 383 ⋅326257.

It can be written as a sum of positive squares in 2 ways, for example, as 72012196 + 62647225 = 8486^2 + 7915^2 .

It is a cyclic number.

It is not a de Polignac number, because 134659421 - 2²⁶ = 67550557 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 (134659423) 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, 5179196 + ... + 5179221.

It is an arithmetic number, because the mean of its divisors is an integer number (36254463).

Almost surely, 2^134659421 is an apocalyptic number.

It is an amenable number.

134659421 is a deficient number, since it is larger than the sum of its proper divisors (10358431).

134659421 is a wasteful number, since it uses less digits than its factorization.

134659421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358430.

The product of its digits is 25920, while the sum is 35.

The square root of 134659421 is about 11604.2845966479. The cubic root of 134659421 is about 512.5610267206.

The spelling of 134659421 in words is "one hundred thirty-four million, six hundred fifty-nine thousand, four hundred twenty-one".