13078491 has 8 divisors (see below), whose sum is σ = 18463824. Its totient is φ = 8206080.

The previous prime is 13078489. The next prime is 13078519. The reversal of 13078491 is 19487031.

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

It is not a de Polignac number, because 13078491 - 2¹ = 13078489 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13078411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128170 + ... + 128271.

It is an arithmetic number, because the mean of its divisors is an integer number (2307978).

Almost surely, 2^13078491 is an apocalyptic number.

13078491 is a deficient number, since it is larger than the sum of its proper divisors (5385333).

13078491 is a wasteful number, since it uses less digits than its factorization.

13078491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256461.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 13078491 is about 3616.4196382610. The cubic root of 13078491 is about 235.6057467494.

The spelling of 13078491 in words is "thirteen million, seventy-eight thousand, four hundred ninety-one".