13522129 has 4 divisors (see below), whose sum is σ = 14233840. Its totient is φ = 12810420.

The previous prime is 13522079. The next prime is 13522133. The reversal of 13522129 is 92122531.

It is a happy number.

13522129 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 13522129 - 2⁹ = 13521617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13522189) 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, 355827 + ... + 355864.

It is an arithmetic number, because the mean of its divisors is an integer number (3558460).

Almost surely, 2^13522129 is an apocalyptic number.

13522129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13522129 is a deficient number, since it is larger than the sum of its proper divisors (711711).

13522129 is an equidigital number, since it uses as much as digits as its factorization.

13522129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711710.

The product of its digits is 1080, while the sum is 25.

The square root of 13522129 is about 3677.2447566079. The cubic root of 13522129 is about 238.2401889871.

It can be divided in two parts, 1352 and 2129, that added together give a square (3481 = 59²).

The spelling of 13522129 in words is "thirteen million, five hundred twenty-two thousand, one hundred twenty-nine".