249068543 has 2 divisors, whose sum is σ = 249068544. Its totient is φ = 249068542.

The previous prime is 249068537. The next prime is 249068569. The reversal of 249068543 is 345860942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249068543 - 2⁴ = 249068527 is a prime.

It is a super-2 number, since 2×249068543² = 124070278224285698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 249068543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249058543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124534271 + 124534272.

It is an arithmetic number, because the mean of its divisors is an integer number (124534272).

Almost surely, 2^249068543 is an apocalyptic number.

249068543 is a deficient number, since it is larger than the sum of its proper divisors (1).

249068543 is an equidigital number, since it uses as much as digits as its factorization.

249068543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 249068543 is about 15781.9055566810. The cubic root of 249068543 is about 629.1771764122.

The spelling of 249068543 in words is "two hundred forty-nine million, sixty-eight thousand, five hundred forty-three".