13398131 has 2 divisors, whose sum is σ = 13398132. Its totient is φ = 13398130.

The previous prime is 13398089. The next prime is 13398139. The reversal of 13398131 is 13189331.

13398131 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 13398131 - 2¹⁴ = 13381747 is a prime.

It is a super-2 number, since 2×13398131² = 359019828586322, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13398094 and 13398103.

It is not a weakly prime, because it can be changed into another prime (13398139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6699065 + 6699066.

It is an arithmetic number, because the mean of its divisors is an integer number (6699066).

Almost surely, 2^13398131 is an apocalyptic number.

13398131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13398131 is an equidigital number, since it uses as much as digits as its factorization.

13398131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 13398131 is about 3660.3457486964. The cubic root of 13398131 is about 237.5097303493.

The spelling of 13398131 in words is "thirteen million, three hundred ninety-eight thousand, one hundred thirty-one".