245445799 has 2 divisors, whose sum is σ = 245445800. Its totient is φ = 245445798.

The previous prime is 245445791. The next prime is 245445829. The reversal of 245445799 is 997544542.

It is a happy number.

245445799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245445799 - 2³ = 245445791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245445791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122722899 + 122722900.

It is an arithmetic number, because the mean of its divisors is an integer number (122722900).

Almost surely, 2^245445799 is an apocalyptic number.

245445799 is a deficient number, since it is larger than the sum of its proper divisors (1).

245445799 is an equidigital number, since it uses as much as digits as its factorization.

245445799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The square root of 245445799 is about 15666.7098971035. The cubic root of 245445799 is about 626.1117696565. Note that the first 3 decimals are identical.

The spelling of 245445799 in words is "two hundred forty-five million, four hundred forty-five thousand, seven hundred ninety-nine".