13521107 has 2 divisors, whose sum is σ = 13521108. Its totient is φ = 13521106.

The previous prime is 13521097. The next prime is 13521113. The reversal of 13521107 is 70112531.

13521107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13521107 - 2⁶ = 13521043 is a prime.

It is not a weakly prime, because it can be changed into another prime (13521127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760553 + 6760554.

It is an arithmetic number, because the mean of its divisors is an integer number (6760554).

Almost surely, 2^13521107 is an apocalyptic number.

13521107 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521107 is an equidigital number, since it uses as much as digits as its factorization.

13521107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 13521107 is about 3677.1057912440. The cubic root of 13521107 is about 238.2341867861.

Adding to 13521107 its reverse (70112531), we get a palindrome (83633638).

The spelling of 13521107 in words is "thirteen million, five hundred twenty-one thousand, one hundred seven".