13840053 has 8 divisors (see below), whose sum is σ = 18493248. Its totient is φ = 9206784.

The previous prime is 13840033. The next prime is 13840061. The reversal of 13840053 is 35004831.

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

It is not a de Polignac number, because 13840053 - 2⁸ = 13839797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13840003) 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, 3276 + ... + 6197.

It is an arithmetic number, because the mean of its divisors is an integer number (2311656).

Almost surely, 2^13840053 is an apocalyptic number.

It is an amenable number.

13840053 is a deficient number, since it is larger than the sum of its proper divisors (4653195).

13840053 is an equidigital number, since it uses as much as digits as its factorization.

13840053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13840053 is about 3720.2221707850. Note that the first 3 decimals coincide. The cubic root of 13840053 is about 240.0928633692.

Adding to 13840053 its reverse (35004831), we get a palindrome (48844884).

The spelling of 13840053 in words is "thirteen million, eight hundred forty thousand, fifty-three".