13127427 has 20 divisors (see below), whose sum is σ = 20071480. Its totient is φ = 8545824.

The previous prime is 13127407. The next prime is 13127431. The reversal of 13127427 is 72472131.

It is a happy number.

It is not a de Polignac number, because 13127427 - 2¹⁶ = 13061891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13127427.

It is not an unprimeable number, because it can be changed into a prime (13127407) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1599 + ... + 5367.

It is an arithmetic number, because the mean of its divisors is an integer number (1003574).

Almost surely, 2^13127427 is an apocalyptic number.

13127427 is a deficient number, since it is larger than the sum of its proper divisors (6944053).

13127427 is an equidigital number, since it uses as much as digits as its factorization.

13127427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3815 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 13127427 is about 3623.1791288867. The cubic root of 13127427 is about 235.8992376033.

Adding to 13127427 its reverse (72472131), we get a palindrome (85599558).

The spelling of 13127427 in words is "thirteen million, one hundred twenty-seven thousand, four hundred twenty-seven".