13145145463 has 4 divisors (see below), whose sum is σ = 13153846608. Its totient is φ = 13136444320.

The previous prime is 13145145443. The next prime is 13145145469. The reversal of 13145145463 is 36454154131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36454154131 = 79 ⋅461444989.

It is a cyclic number.

It is not a de Polignac number, because 13145145463 - 2²¹ = 13143048311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145145469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4348306 + ... + 4351327.

It is an arithmetic number, because the mean of its divisors is an integer number (3288461652).

Almost surely, 2^13145145463 is an apocalyptic number.

13145145463 is a deficient number, since it is larger than the sum of its proper divisors (8701145).

13145145463 is an equidigital number, since it uses as much as digits as its factorization.

13145145463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8701144.

The product of its digits is 86400, while the sum is 37.

Adding to 13145145463 its reverse (36454154131), we get a palindrome (49599299594).

The spelling of 13145145463 in words is "thirteen billion, one hundred forty-five million, one hundred forty-five thousand, four hundred sixty-three".