13397851 has 2 divisors, whose sum is σ = 13397852. Its totient is φ = 13397850.

The previous prime is 13397837. The next prime is 13397861. The reversal of 13397851 is 15879331.

It is a happy number.

13397851 is digitally balanced in base 3, 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 13397851 - 2¹⁷ = 13266779 is a prime.

It is a super-2 number, since 2×13397851² = 359004822836402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13397851.

It is not a weakly prime, because it can be changed into another prime (13397861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6698925 + 6698926.

It is an arithmetic number, because the mean of its divisors is an integer number (6698926).

Almost surely, 2^13397851 is an apocalyptic number.

13397851 is a deficient number, since it is larger than the sum of its proper divisors (1).

13397851 is an equidigital number, since it uses as much as digits as its factorization.

13397851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 13397851 is about 3660.3075007436. The cubic root of 13397851 is about 237.5080758103.

The spelling of 13397851 in words is "thirteen million, three hundred ninety-seven thousand, eight hundred fifty-one".