245105345136 has 40 divisors (see below), whose sum is σ = 633239429904. Its totient is φ = 81695249920.

The previous prime is 245105345129. The next prime is 245105345141. The reversal of 245105345136 is 631543501542.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 245105345094 and 245105345103.

It is a congruent number.

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, 422356 + ... + 817676.

Almost surely, 2^245105345136 is an apocalyptic number.

It is an amenable number.

245105345136 is an abundant number, since it is smaller than the sum of its proper divisors (388134084768).

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

245105345136 is a wasteful number, since it uses less digits than its factorization.

245105345136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408249 (or 408243 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 245105345136 its reverse (631543501542), we get a palindrome (876648846678).

It can be divided in two parts, 245105 and 345136, that added together give a triangular number (590241 = T₁₀₈₆).

The spelling of 245105345136 in words is "two hundred forty-five billion, one hundred five million, three hundred forty-five thousand, one hundred thirty-six".