13012478 has 8 divisors (see below), whose sum is σ = 19572168. Its totient is φ = 6488424.

The previous prime is 13012471. The next prime is 13012487. The reversal of 13012478 is 87421031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012471) 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, 7976 + ... + 9467.

It is an arithmetic number, because the mean of its divisors is an integer number (2446521).

Almost surely, 2^13012478 is an apocalyptic number.

13012478 is a deficient number, since it is larger than the sum of its proper divisors (6559690).

13012478 is a wasteful number, since it uses less digits than its factorization.

13012478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17818.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13012478 is about 3607.2812476989. The cubic root of 13012478 is about 235.2086753668.

The spelling of 13012478 in words is "thirteen million, twelve thousand, four hundred seventy-eight".