13071243 has 8 divisors (see below), whose sum is σ = 17990656. Its totient is φ = 8433000.

The previous prime is 13071241. The next prime is 13071281. The reversal of 13071243 is 34217031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13071243 - 2¹ = 13071241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13071241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70183 + ... + 70368.

It is an arithmetic number, because the mean of its divisors is an integer number (2248832).

Almost surely, 2^13071243 is an apocalyptic number.

13071243 is a deficient number, since it is larger than the sum of its proper divisors (4919413).

13071243 is a wasteful number, since it uses less digits than its factorization.

13071243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140585.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13071243 is about 3615.4174032883. The cubic root of 13071243 is about 235.5622150705.

Adding to 13071243 its reverse (34217031), we get a palindrome (47288274).

The spelling of 13071243 in words is "thirteen million, seventy-one thousand, two hundred forty-three".