13144678 has 8 divisors (see below), whose sum is σ = 20136672. Its totient is φ = 6432456.

The previous prime is 13144673. The next prime is 13144679. The reversal of 13144678 is 87644131.

It is a happy number.

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

It is a super-3 number, since 3×13144678³ (a number of 22 digits) contains 333 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144673) 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, 69825 + ... + 70012.

It is an arithmetic number, because the mean of its divisors is an integer number (2517084).

Almost surely, 2^13144678 is an apocalyptic number.

13144678 is a deficient number, since it is larger than the sum of its proper divisors (6991994).

13144678 is a wasteful number, since it uses less digits than its factorization.

13144678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139886.

The product of its digits is 16128, while the sum is 34.

The square root of 13144678 is about 3625.5589913833. The cubic root of 13144678 is about 236.0025255882.

The spelling of 13144678 in words is "thirteen million, one hundred forty-four thousand, six hundred seventy-eight".