12833145 has 24 divisors (see below), whose sum is σ = 23956296. Its totient is φ = 6317568.

The previous prime is 12833137. The next prime is 12833159. The reversal of 12833145 is 54133821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45369 + 12787776 = 213^2 + 3576^2 .

It is not a de Polignac number, because 12833145 - 2³ = 12833137 is a prime.

It is a super-2 number, since 2×12833145² = 329379221182050, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10384 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (998179).

Almost surely, 2^12833145 is an apocalyptic number.

12833145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12833145 is a deficient number, since it is larger than the sum of its proper divisors (11123151).

12833145 is a wasteful number, since it uses less digits than its factorization.

12833145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21961 (or 21958 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12833145 is about 3582.3379237587. The cubic root of 12833145 is about 234.1231545454.

Adding to 12833145 its reverse (54133821), we get a palindrome (66966966).

The spelling of 12833145 in words is "twelve million, eight hundred thirty-three thousand, one hundred forty-five".