249914447 has 2 divisors, whose sum is σ = 249914448. Its totient is φ = 249914446.

The previous prime is 249914417. The next prime is 249914449. The reversal of 249914447 is 744419942.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249914447 - 2¹⁸ = 249652303 is a prime.

Together with 249914449, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 249914398 and 249914407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249914449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124957223 + 124957224.

It is an arithmetic number, because the mean of its divisors is an integer number (124957224).

Almost surely, 2^249914447 is an apocalyptic number.

249914447 is a deficient number, since it is larger than the sum of its proper divisors (1).

249914447 is an equidigital number, since it uses as much as digits as its factorization.

249914447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 249914447 is about 15808.6826459386. The cubic root of 249914447 is about 629.8886567317. Note that the first 3 decimals are identical.

The spelling of 249914447 in words is "two hundred forty-nine million, nine hundred fourteen thousand, four hundred forty-seven".