13522061 has 4 divisors (see below), whose sum is σ = 15453792. Its totient is φ = 11590332.

The previous prime is 13522031. The next prime is 13522063. The reversal of 13522061 is 16022531.

13522061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13522061 - 2²² = 9327757 is a prime.

It is a super-2 number, since 2×13522061² = 365692267375442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13522063) 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, 965855 + ... + 965868.

It is an arithmetic number, because the mean of its divisors is an integer number (3863448).

Almost surely, 2^13522061 is an apocalyptic number.

It is an amenable number.

13522061 is a deficient number, since it is larger than the sum of its proper divisors (1931731).

13522061 is an equidigital number, since it uses as much as digits as its factorization.

13522061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931730.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13522061 is about 3677.2355105432. The cubic root of 13522061 is about 238.2397896328.

Adding to 13522061 its reverse (16022531), we get a palindrome (29544592).

The spelling of 13522061 in words is "thirteen million, five hundred twenty-two thousand, sixty-one".