13650231 has 8 divisors (see below), whose sum is σ = 20800384. Its totient is φ = 7800120.

The previous prime is 13650211. The next prime is 13650233. The reversal of 13650231 is 13205631.

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

It is not a de Polignac number, because 13650231 - 2⁷ = 13650103 is a prime.

It is a super-2 number, since 2×13650231² = 372657612706722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 650011 = 13650231 / (1 + 3 + 6 + 5 + 0 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13650198 and 13650207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324985 + ... + 325026.

It is an arithmetic number, because the mean of its divisors is an integer number (2600048).

Almost surely, 2^13650231 is an apocalyptic number.

13650231 is a deficient number, since it is larger than the sum of its proper divisors (7150153).

13650231 is an equidigital number, since it uses as much as digits as its factorization.

13650231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650021.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13650231 is about 3694.6219021708. The cubic root of 13650231 is about 238.9901491595.

Adding to 13650231 its reverse (13205631), we get a palindrome (26855862).

The spelling of 13650231 in words is "thirteen million, six hundred fifty thousand, two hundred thirty-one".