13501243 has 8 divisors (see below), whose sum is σ = 15552512. Its totient is φ = 11480616.

The previous prime is 13501219. The next prime is 13501249. The reversal of 13501243 is 34210531.

13501243 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13501243 - 2¹⁷ = 13370171 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 13501243.

It is not an unprimeable number, because it can be changed into a prime (13501249) 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, 6705 + ... + 8482.

It is an arithmetic number, because the mean of its divisors is an integer number (1944064).

Almost surely, 2^13501243 is an apocalyptic number.

13501243 is a deficient number, since it is larger than the sum of its proper divisors (2051269).

13501243 is a wasteful number, since it uses less digits than its factorization.

13501243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321.

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

The square root of 13501243 is about 3674.4037611564. The cubic root of 13501243 is about 238.1174654951.

Adding to 13501243 its reverse (34210531), we get a palindrome (47711774).

The spelling of 13501243 in words is "thirteen million, five hundred one thousand, two hundred forty-three".