13970851 has 2 divisors, whose sum is σ = 13970852. Its totient is φ = 13970850.

The previous prime is 13970843. The next prime is 13970881. The reversal of 13970851 is 15807931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13970851 - 2³ = 13970843 is a prime.

It is not a weakly prime, because it can be changed into another prime (13970881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985425 + 6985426.

It is an arithmetic number, because the mean of its divisors is an integer number (6985426).

Almost surely, 2^13970851 is an apocalyptic number.

13970851 is a deficient number, since it is larger than the sum of its proper divisors (1).

13970851 is an equidigital number, since it uses as much as digits as its factorization.

13970851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 13970851 is about 3737.7601581696. The cubic root of 13970851 is about 240.8468405824.

The spelling of 13970851 in words is "thirteen million, nine hundred seventy thousand, eight hundred fifty-one".