13129478 has 8 divisors (see below), whose sum is σ = 20065968. Its totient is φ = 6440824.

The previous prime is 13129477. The next prime is 13129483. The reversal of 13129478 is 87492131.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129477) 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, 61826 + ... + 62037.

It is an arithmetic number, because the mean of its divisors is an integer number (2508246).

Almost surely, 2^13129478 is an apocalyptic number.

13129478 is a deficient number, since it is larger than the sum of its proper divisors (6936490).

13129478 is a wasteful number, since it uses less digits than its factorization.

13129478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123918.

The product of its digits is 12096, while the sum is 35.

The square root of 13129478 is about 3623.4621565569. The cubic root of 13129478 is about 235.9115224209.

The spelling of 13129478 in words is "thirteen million, one hundred twenty-nine thousand, four hundred seventy-eight".