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249419 is a prime number
BaseRepresentation
bin111100111001001011
3110200010202
4330321023
530440134
65202415
72056112
oct747113
9420122
10249419
11160435
1210040b
13896b1
1466c79
154dd7e
hex3ce4b

249419 has 2 divisors, whose sum is σ = 249420. Its totient is φ = 249418.

The previous prime is 249397. The next prime is 249421. The reversal of 249419 is 914942.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-249419 is a prime.

It is a super-2 number, since 2×2494192 = 124419675122, which contains 22 as substring.

Together with 249421, 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 = 249391 and 249400.

It is not a weakly prime, because it can be changed into another prime (249439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124709 + 124710.

It is an arithmetic number, because the mean of its divisors is an integer number (124710).

2249419 is an apocalyptic number.

249419 is a deficient number, since it is larger than the sum of its proper divisors (1).

249419 is an equidigital number, since it uses as much as digits as its factorization.

249419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 249419 is about 499.4186620462. The cubic root of 249419 is about 62.9472136994.

The spelling of 249419 in words is "two hundred forty-nine thousand, four hundred nineteen".