134480821 has 8 divisors (see below), whose sum is σ = 140096000. Its totient is φ = 128945520.

The previous prime is 134480809. The next prime is 134480837. The reversal of 134480821 is 128084431.

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 134480821 - 2⁵ = 134480789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134480851) 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, 16521 + ... + 23278.

It is an arithmetic number, because the mean of its divisors is an integer number (17512000).

Almost surely, 2^134480821 is an apocalyptic number.

It is an amenable number.

134480821 is a deficient number, since it is larger than the sum of its proper divisors (5615179).

134480821 is a wasteful number, since it uses less digits than its factorization.

134480821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39939.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 134480821 is about 11596.5866098607. The cubic root of 134480821 is about 512.3343216990.

The spelling of 134480821 in words is "one hundred thirty-four million, four hundred eighty thousand, eight hundred twenty-one".