13250643 has 16 divisors (see below), whose sum is σ = 20325120. Its totient is φ = 7521696.

The previous prime is 13250621. The next prime is 13250683. The reversal of 13250643 is 34605231.

It is a happy number.

It is not a de Polignac number, because 13250643 - 2⁸ = 13250387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13250683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288 + ... + 5306.

It is an arithmetic number, because the mean of its divisors is an integer number (1270320).

Almost surely, 2^13250643 is an apocalyptic number.

13250643 is a deficient number, since it is larger than the sum of its proper divisors (7074477).

13250643 is a wasteful number, since it uses less digits than its factorization.

13250643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13250643 is about 3640.1432664114. The cubic root of 13250643 is about 236.6350022659.

Adding to 13250643 its reverse (34605231), we get a palindrome (47855874).

The spelling of 13250643 in words is "thirteen million, two hundred fifty thousand, six hundred forty-three".