13351145305 has 8 divisors (see below), whose sum is σ = 16454384712. Its totient is φ = 10392242688.

The previous prime is 13351145299. The next prime is 13351145329. The reversal of 13351145305 is 50354115331.

It can be written as a sum of positive squares in 4 ways, for example, as 8381036304 + 4970109001 = 91548^2 + 70499^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-13351145305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36083992 + ... + 36084361.

It is an arithmetic number, because the mean of its divisors is an integer number (2056798089).

Almost surely, 2^13351145305 is an apocalyptic number.

It is an amenable number.

13351145305 is a deficient number, since it is larger than the sum of its proper divisors (3103239407).

13351145305 is an equidigital number, since it uses as much as digits as its factorization.

13351145305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72168395.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 13351145305 in words is "thirteen billion, three hundred fifty-one million, one hundred forty-five thousand, three hundred five".