13250331 has 16 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 8802504.

The previous prime is 13250311. The next prime is 13250333. The reversal of 13250331 is 13305231.

13250331 is a `hidden beast` number, since 132 + 503 + 31 = 666.

It is not a de Polignac number, because 13250331 - 2¹¹ = 13248283 is a prime.

It is a super-2 number, since 2×13250331² = 351142543219122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13250333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9010 + ... + 10376.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^13250331 is an apocalyptic number.

13250331 is a deficient number, since it is larger than the sum of its proper divisors (6448869).

13250331 is a wasteful number, since it uses less digits than its factorization.

13250331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 13250331 is about 3640.1004107030. The cubic root of 13250331 is about 236.6331449800.

Adding to 13250331 its reverse (13305231), we get a palindrome (26555562).

The spelling of 13250331 in words is "thirteen million, two hundred fifty thousand, three hundred thirty-one".