13145254122 has 64 divisors (see below), whose sum is σ = 35299160064. Its totient is φ = 3151707840.

The previous prime is 13145254117. The next prime is 13145254159. The reversal of 13145254122 is 22145254131.

It is a self number, because there is not a number n which added to its sum of digits gives 13145254122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1088338 + ... + 1100349.

It is an arithmetic number, because the mean of its divisors is an integer number (551549376).

Almost surely, 2^13145254122 is an apocalyptic number.

13145254122 is an abundant number, since it is smaller than the sum of its proper divisors (22153905942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13145254122 is a wasteful number, since it uses less digits than its factorization.

13145254122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188723.

The product of its digits is 9600, while the sum is 30.

Subtracting 13145254122 from its reverse (22145254131), we obtain a palindrome (9000000009).

The spelling of 13145254122 in words is "thirteen billion, one hundred forty-five million, two hundred fifty-four thousand, one hundred twenty-two".