13001897 has 2 divisors, whose sum is σ = 13001898. Its totient is φ = 13001896.

The previous prime is 13001861. The next prime is 13001917. The reversal of 13001897 is 79810031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9388096 + 3613801 = 3064^2 + 1901^2 .

It is a cyclic number.

It is not a de Polignac number, because 13001897 - 2¹² = 12997801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13001827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500948 + 6500949.

It is an arithmetic number, because the mean of its divisors is an integer number (6500949).

Almost surely, 2^13001897 is an apocalyptic number.

It is an amenable number.

13001897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13001897 is an equidigital number, since it uses as much as digits as its factorization.

13001897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 13001897 is about 3605.8143324359. The cubic root of 13001897 is about 235.1449053489.

The spelling of 13001897 in words is "thirteen million, one thousand, eight hundred ninety-seven".