13146407 has 4 divisors (see below), whose sum is σ = 13225296. Its totient is φ = 13067520.

The previous prime is 13146379. The next prime is 13146421. The reversal of 13146407 is 70464131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70464131 = 239 ⋅294829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13146407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39194 + ... + 39527.

It is an arithmetic number, because the mean of its divisors is an integer number (3306324).

Almost surely, 2^13146407 is an apocalyptic number.

13146407 is a deficient number, since it is larger than the sum of its proper divisors (78889).

13146407 is an equidigital number, since it uses as much as digits as its factorization.

13146407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78888.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13146407 is about 3625.7974295319. The cubic root of 13146407 is about 236.0128727537.

The spelling of 13146407 in words is "thirteen million, one hundred forty-six thousand, four hundred seven".