12153345 has 8 divisors (see below), whose sum is σ = 19445376. Its totient is φ = 6481776.

The previous prime is 12153341. The next prime is 12153359. The reversal of 12153345 is 54335121.

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

It is not a de Polignac number, because 12153345 - 2² = 12153341 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12153341) 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, 405097 + ... + 405126.

It is an arithmetic number, because the mean of its divisors is an integer number (2430672).

Almost surely, 2^12153345 is an apocalyptic number.

12153345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12153345 is a deficient number, since it is larger than the sum of its proper divisors (7292031).

12153345 is an equidigital number, since it uses as much as digits as its factorization.

12153345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810231.

The product of its digits is 1800, while the sum is 24.

The square root of 12153345 is about 3486.1647981700. The cubic root of 12153345 is about 229.9139249432.

Adding to 12153345 its reverse (54335121), we get a palindrome (66488466).

It can be divided in two parts, 1215 and 3345, that added together give a triangular number (4560 = T₉₅).

The spelling of 12153345 in words is "twelve million, one hundred fifty-three thousand, three hundred forty-five".