13249427 has 4 divisors (see below), whose sum is σ = 13431000. Its totient is φ = 13067856.

The previous prime is 13249421. The next prime is 13249429. The reversal of 13249427 is 72494231.

13249427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13249427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13249393 and 13249402.

It is not an unprimeable number, because it can be changed into a prime (13249421) 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, 90677 + ... + 90822.

It is an arithmetic number, because the mean of its divisors is an integer number (3357750).

Almost surely, 2^13249427 is an apocalyptic number.

13249427 is a deficient number, since it is larger than the sum of its proper divisors (181573).

13249427 is an equidigital number, since it uses as much as digits as its factorization.

13249427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181572.

The product of its digits is 12096, while the sum is 32.

The square root of 13249427 is about 3639.9762361862. The cubic root of 13249427 is about 236.6277634483.

The spelling of 13249427 in words is "thirteen million, two hundred forty-nine thousand, four hundred twenty-seven".