13223604145 has 8 divisors (see below), whose sum is σ = 16167727656. Its totient is φ = 10379281536.

The previous prime is 13223604137. The next prime is 13223604157. The reversal of 13223604145 is 54140632231.

It can be written as a sum of positive squares in 4 ways, for example, as 1815441664 + 11408162481 = 42608^2 + 106809^2 .

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 13223604145 - 2³ = 13223604137 is a prime.

It is a super-3 number, since 3×13223604145³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24949932 + ... + 24950461.

It is an arithmetic number, because the mean of its divisors is an integer number (2020965957).

Almost surely, 2^13223604145 is an apocalyptic number.

It is an amenable number.

13223604145 is a deficient number, since it is larger than the sum of its proper divisors (2944123511).

13223604145 is an equidigital number, since it uses as much as digits as its factorization.

13223604145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49900451.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 13223604145 in words is "thirteen billion, two hundred twenty-three million, six hundred four thousand, one hundred forty-five".