245837243 has 2 divisors, whose sum is σ = 245837244. Its totient is φ = 245837242.

The previous prime is 245837227. The next prime is 245837261. The reversal of 245837243 is 342738542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245837243 - 2⁴ = 245837227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245837197 and 245837206.

It is not a weakly prime, because it can be changed into another prime (245837203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122918621 + 122918622.

It is an arithmetic number, because the mean of its divisors is an integer number (122918622).

Almost surely, 2^245837243 is an apocalyptic number.

245837243 is a deficient number, since it is larger than the sum of its proper divisors (1).

245837243 is an equidigital number, since it uses as much as digits as its factorization.

245837243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 38.

The square root of 245837243 is about 15679.1977792233. The cubic root of 245837243 is about 626.4444398712. Note that the first 4 decimals are identical.

The spelling of 245837243 in words is "two hundred forty-five million, eight hundred thirty-seven thousand, two hundred forty-three".