13140522 has 16 divisors (see below), whose sum is σ = 29201280. Its totient is φ = 4380156.

The previous prime is 13140503. The next prime is 13140527. The reversal of 13140522 is 22504131.

13140522 is a `hidden beast` number, since 1 + 3 + 140 + 522 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13140495 and 13140504.

It is not an unprimeable number, because it can be changed into a prime (13140527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121618 + ... + 121725.

It is an arithmetic number, because the mean of its divisors is an integer number (1825080).

Almost surely, 2^13140522 is an apocalyptic number.

13140522 is an abundant number, since it is smaller than the sum of its proper divisors (16060758).

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

13140522 is a wasteful number, since it uses less digits than its factorization.

13140522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243354 (or 243348 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13140522 is about 3624.9857930756. The cubic root of 13140522 is about 235.9776503780.

Adding to 13140522 its reverse (22504131), we get a palindrome (35644653).

The spelling of 13140522 in words is "thirteen million, one hundred forty thousand, five hundred twenty-two".