13453216145 has 8 divisors (see below), whose sum is σ = 16700544360. Its totient is φ = 10391449600.

The previous prime is 13453216129. The next prime is 13453216163. The reversal of 13453216145 is 54161235431.

It is a Cunningham number, because it is equal to 115988²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4843046464 + 8610169681 = 69592^2 + 92791^2 .

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

It is not a de Polignac number, because 13453216145 - 2⁴ = 13453216129 is a prime.

It is a super-2 number, since 2×13453216145² (a number of 21 digits) contains 22 as substring.

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, 46390256 + ... + 46390545.

It is an arithmetic number, because the mean of its divisors is an integer number (2087568045).

Almost surely, 2^13453216145 is an apocalyptic number.

It is an amenable number.

13453216145 is a deficient number, since it is larger than the sum of its proper divisors (3247328215).

13453216145 is an equidigital number, since it uses as much as digits as its factorization.

13453216145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92780835.

The product of its digits is 43200, while the sum is 35.

The spelling of 13453216145 in words is "thirteen billion, four hundred fifty-three million, two hundred sixteen thousand, one hundred forty-five".