13998251 has 2 divisors, whose sum is σ = 13998252. Its totient is φ = 13998250.

The previous prime is 13998241. The next prime is 13998301. The reversal of 13998251 is 15289931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13998251 - 2²² = 9803947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13998221) 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, 6999125 + 6999126.

It is an arithmetic number, because the mean of its divisors is an integer number (6999126).

Almost surely, 2^13998251 is an apocalyptic number.

13998251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13998251 is an equidigital number, since it uses as much as digits as its factorization.

13998251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 13998251 is about 3741.4236595179. The cubic root of 13998251 is about 241.0041894785.

The spelling of 13998251 in words is "thirteen million, nine hundred ninety-eight thousand, two hundred fifty-one".