134466821 has 8 divisors (see below), whose sum is σ = 142481664. Its totient is φ = 126463680.

The previous prime is 134466817. The next prime is 134466833. The reversal of 134466821 is 128664431.

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

It is not a de Polignac number, because 134466821 - 2² = 134466817 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 (134466811) 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, 34586 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (17810208).

Almost surely, 2^134466821 is an apocalyptic number.

It is an amenable number.

134466821 is a deficient number, since it is larger than the sum of its proper divisors (8014843).

134466821 is a wasteful number, since it uses less digits than its factorization.

134466821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its digits is 27648, while the sum is 35.

The square root of 134466821 is about 11595.9829682524. The cubic root of 134466821 is about 512.3165423870.

The spelling of 134466821 in words is "one hundred thirty-four million, four hundred sixty-six thousand, eight hundred twenty-one".