13332645 has 24 divisors (see below), whose sum is σ = 23376600. Its totient is φ = 7028736.

The previous prime is 13332637. The next prime is 13332653. The reversal of 13332645 is 54623331.

It is a happy number.

13332645 is a `hidden beast` number, since 13 + 3 + 3 + 2 + 645 = 666.

13332645 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13332637) and next prime (13332653).

It can be written as a sum of positive squares in 4 ways, for example, as 133956 + 13198689 = 366^2 + 3633^2 .

It is not a de Polignac number, because 13332645 - 2³ = 13332637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2341 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (974025).

Almost surely, 2^13332645 is an apocalyptic number.

13332645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13332645 is a deficient number, since it is larger than the sum of its proper divisors (10043955).

13332645 is a wasteful number, since it uses less digits than its factorization.

13332645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3426 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 13332645 is about 3651.3894615612. The cubic root of 13332645 is about 237.1221396821.

Adding to 13332645 its reverse (54623331), we get a palindrome (67955976).

The spelling of 13332645 in words is "thirteen million, three hundred thirty-two thousand, six hundred forty-five".