13331455145 has 8 divisors (see below), whose sum is σ = 16260004680. Its totient is φ = 10490325120.

The previous prime is 13331455099. The next prime is 13331455147. The reversal of 13331455145 is 54155413331.

It can be written as a sum of positive squares in 4 ways, for example, as 2521744 + 13328933401 = 1588^2 + 115451^2 .

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-13331455145 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13331455147) by changing a digit.

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, 21854540 + ... + 21855149.

It is an arithmetic number, because the mean of its divisors is an integer number (2032500585).

Almost surely, 2^13331455145 is an apocalyptic number.

It is an amenable number.

13331455145 is a deficient number, since it is larger than the sum of its proper divisors (2928549535).

13331455145 is an equidigital number, since it uses as much as digits as its factorization.

13331455145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43709755.

The product of its digits is 54000, while the sum is 35.

Adding to 13331455145 its reverse (54155413331), we get a palindrome (67486868476).

The spelling of 13331455145 in words is "thirteen billion, three hundred thirty-one million, four hundred fifty-five thousand, one hundred forty-five".