13215246545 has 16 divisors (see below), whose sum is σ = 16244659200. Its totient is φ = 10315154304.

The previous prime is 13215246533. The next prime is 13215246557. The reversal of 13215246545 is 54564251231.

It is an interprime number because it is at equal distance from previous prime (13215246533) and next prime (13215246557).

It is a cyclic number.

It is not a de Polignac number, because 13215246545 - 2¹⁰ = 13215245521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13215246499 and 13215246508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168656 + ... + 234254.

It is an arithmetic number, because the mean of its divisors is an integer number (1015291200).

Almost surely, 2^13215246545 is an apocalyptic number.

It is an amenable number.

13215246545 is a deficient number, since it is larger than the sum of its proper divisors (3029412655).

13215246545 is an equidigital number, since it uses as much as digits as its factorization.

13215246545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66584.

The product of its digits is 144000, while the sum is 38.

Adding to 13215246545 its reverse (54564251231), we get a palindrome (67779497776).

The spelling of 13215246545 in words is "thirteen billion, two hundred fifteen million, two hundred forty-six thousand, five hundred forty-five".