13521114137 has 2 divisors, whose sum is σ = 13521114138. Its totient is φ = 13521114136.

The previous prime is 13521114073. The next prime is 13521114143. The reversal of 13521114137 is 73141112531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13506855961 + 14258176 = 116219^2 + 3776^2 .

It is a cyclic number.

It is not a de Polignac number, because 13521114137 - 2⁶ = 13521114073 is a prime.

It is not a weakly prime, because it can be changed into another prime (13521111137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760557068 + 6760557069.

It is an arithmetic number, because the mean of its divisors is an integer number (6760557069).

Almost surely, 2^13521114137 is an apocalyptic number.

It is an amenable number.

13521114137 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521114137 is an equidigital number, since it uses as much as digits as its factorization.

13521114137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

Adding to 13521114137 its reverse (73141112531), we get a palindrome (86662226668).

The spelling of 13521114137 in words is "thirteen billion, five hundred twenty-one million, one hundred fourteen thousand, one hundred thirty-seven".