13233145 has 8 divisors (see below), whose sum is σ = 16026120. Its totient is φ = 10488960.

The previous prime is 13233127. The next prime is 13233149. The reversal of 13233145 is 54133231.

It can be written as a sum of positive squares in 4 ways, for example, as 5659641 + 7573504 = 2379^2 + 2752^2 .

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

It is not a de Polignac number, because 13233145 - 2⁹ = 13232633 is a prime.

It is a super-2 number, since 2×13233145² = 350232253182050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13233149) 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, 11596 + ... + 12685.

It is an arithmetic number, because the mean of its divisors is an integer number (2003265).

Almost surely, 2^13233145 is an apocalyptic number.

It is an amenable number.

13233145 is a deficient number, since it is larger than the sum of its proper divisors (2792975).

13233145 is a wasteful number, since it uses less digits than its factorization.

13233145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24395.

The product of its digits is 1080, while the sum is 22.

The square root of 13233145 is about 3637.7389955850. The cubic root of 13233145 is about 236.5307944114.

Adding to 13233145 its reverse (54133231), we get a palindrome (67366376).

The spelling of 13233145 in words is "thirteen million, two hundred thirty-three thousand, one hundred forty-five".