13440134 has 8 divisors (see below), whose sum is σ = 20265240. Its totient is φ = 6685056.

The previous prime is 13440121. The next prime is 13440173. The reversal of 13440134 is 43104431.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17024 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (2533155).

Almost surely, 2^13440134 is an apocalyptic number.

13440134 is a deficient number, since it is larger than the sum of its proper divisors (6825106).

13440134 is a wasteful number, since it uses less digits than its factorization.

13440134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35014.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13440134 is about 3666.0788316674. The cubic root of 13440134 is about 237.7576682721.

Adding to 13440134 its reverse (43104431), we get a palindrome (56544565).

The spelling of 13440134 in words is "thirteen million, four hundred forty thousand, one hundred thirty-four".