134320639 has 8 divisors (see below), whose sum is σ = 137445120. Its totient is φ = 131224536.

The previous prime is 134320579. The next prime is 134320649. The reversal of 134320639 is 936023431.

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 134320639 - 2⁹ = 134320127 is a prime.

It is a super-2 number, since 2×134320639² = 36084068122736642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134320639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134320649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634 + ... + 16600.

It is an arithmetic number, because the mean of its divisors is an integer number (17180640).

Almost surely, 2^134320639 is an apocalyptic number.

134320639 is a deficient number, since it is larger than the sum of its proper divisors (3124481).

134320639 is a wasteful number, since it uses less digits than its factorization.

134320639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14189.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 134320639 is about 11589.6781232267. The cubic root of 134320639 is about 512.1308246727.

The spelling of 134320639 in words is "one hundred thirty-four million, three hundred twenty thousand, six hundred thirty-nine".