13057427 has 4 divisors (see below), whose sum is σ = 13744680. Its totient is φ = 12370176.

The previous prime is 13057403. The next prime is 13057433. The reversal of 13057427 is 72475031.

13057427 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 72475031 = 29 ⋅2499139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13057427 is a prime.

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 13057427.

It is not an unprimeable number, because it can be changed into a prime (13057487) 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, 343598 + ... + 343635.

It is an arithmetic number, because the mean of its divisors is an integer number (3436170).

Almost surely, 2^13057427 is an apocalyptic number.

13057427 is a deficient number, since it is larger than the sum of its proper divisors (687253).

13057427 is an equidigital number, since it uses as much as digits as its factorization.

13057427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687252.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13057427 is about 3613.5061920523. The cubic root of 13057427 is about 235.4791912171.

The spelling of 13057427 in words is "thirteen million, fifty-seven thousand, four hundred twenty-seven".