13542522 has 48 divisors (see below), whose sum is σ = 31989312. Its totient is φ = 3810240.

The previous prime is 13542521. The next prime is 13542539. The reversal of 13542522 is 22524531.

It is a junction number, because it is equal to n+sod(n) for n = 13542492 and 13542501.

It is not an unprimeable number, because it can be changed into a prime (13542521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21147 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (666444).

Almost surely, 2^13542522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13542522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15994656).

13542522 is an abundant number, since it is smaller than the sum of its proper divisors (18446790).

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

13542522 is a wasteful number, since it uses less digits than its factorization.

13542522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 716 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 13542522 is about 3680.0165760496. The cubic root of 13542522 is about 238.3598938021.

Subtracting 13542522 from its reverse (22524531), we obtain a square (8982009 = 2997²).

The spelling of 13542522 in words is "thirteen million, five hundred forty-two thousand, five hundred twenty-two".