13212140145 has 8 divisors (see below), whose sum is σ = 21139424256. Its totient is φ = 7046474736.

The previous prime is 13212140141. The next prime is 13212140177. The reversal of 13212140145 is 54104121231.

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

It is not a de Polignac number, because 13212140145 - 2² = 13212140141 is a prime.

It is a super-2 number, since 2×13212140145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13212140141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 440404657 + ... + 440404686.

It is an arithmetic number, because the mean of its divisors is an integer number (2642428032).

Almost surely, 2^13212140145 is an apocalyptic number.

13212140145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13212140145 is a deficient number, since it is larger than the sum of its proper divisors (7927284111).

13212140145 is an equidigital number, since it uses as much as digits as its factorization.

13212140145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880809351.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 13212140145 its reverse (54104121231), we get a palindrome (67316261376).

The spelling of 13212140145 in words is "thirteen billion, two hundred twelve million, one hundred forty thousand, one hundred forty-five".