245849843 has 2 divisors, whose sum is σ = 245849844. Its totient is φ = 245849842.

The previous prime is 245849837. The next prime is 245849887. The reversal of 245849843 is 348948542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245849843 - 2⁸ = 245849587 is a prime.

It is not a weakly prime, because it can be changed into another prime (245849143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122924921 + 122924922.

It is an arithmetic number, because the mean of its divisors is an integer number (122924922).

Almost surely, 2^245849843 is an apocalyptic number.

245849843 is a deficient number, since it is larger than the sum of its proper divisors (1).

245849843 is an equidigital number, since it uses as much as digits as its factorization.

245849843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 47.

The square root of 245849843 is about 15679.5995803464. The cubic root of 245849843 is about 626.4551421621.

The spelling of 245849843 in words is "two hundred forty-five million, eight hundred forty-nine thousand, eight hundred forty-three".