13215045 has 8 divisors (see below), whose sum is σ = 21144096. Its totient is φ = 7048016.

The previous prime is 13215029. The next prime is 13215047. The reversal of 13215045 is 54051231.

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

It is a cyclic number.

It is not a de Polignac number, because 13215045 - 2⁴ = 13215029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440487 + ... + 440516.

It is an arithmetic number, because the mean of its divisors is an integer number (2643012).

Almost surely, 2^13215045 is an apocalyptic number.

13215045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13215045 is a deficient number, since it is larger than the sum of its proper divisors (7929051).

13215045 is an equidigital number, since it uses as much as digits as its factorization.

13215045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881011.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13215045 is about 3635.2503352589. The cubic root of 13215045 is about 236.4229046952.

Adding to 13215045 its reverse (54051231), we get a palindrome (67266276).

The spelling of 13215045 in words is "thirteen million, two hundred fifteen thousand, forty-five".