13051243 has 4 divisors (see below), whose sum is σ = 13369608. Its totient is φ = 12732880.

The previous prime is 13051237. The next prime is 13051261. The reversal of 13051243 is 34215031.

13051243 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.

It is a cyclic number.

It is not a de Polignac number, because 13051243 - 2⁹ = 13050731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13051243.

It is not an unprimeable number, because it can be changed into a prime (13051273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159121 + ... + 159202.

It is an arithmetic number, because the mean of its divisors is an integer number (3342402).

Almost surely, 2^13051243 is an apocalyptic number.

13051243 is a deficient number, since it is larger than the sum of its proper divisors (318365).

13051243 is an equidigital number, since it uses as much as digits as its factorization.

13051243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318364.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13051243 is about 3612.6504120936. The cubic root of 13051243 is about 235.4420110165.

Adding to 13051243 its reverse (34215031), we get a palindrome (47266274).

The spelling of 13051243 in words is "thirteen million, fifty-one thousand, two hundred forty-three".