245240663 has 2 divisors, whose sum is σ = 245240664. Its totient is φ = 245240662.

The previous prime is 245240641. The next prime is 245240687. The reversal of 245240663 is 366042542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245240663 - 2²⁰ = 244192087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245240263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122620331 + 122620332.

It is an arithmetic number, because the mean of its divisors is an integer number (122620332).

Almost surely, 2^245240663 is an apocalyptic number.

245240663 is a deficient number, since it is larger than the sum of its proper divisors (1).

245240663 is an equidigital number, since it uses as much as digits as its factorization.

245240663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 245240663 is about 15660.1616530609. The cubic root of 245240663 is about 625.9372927623.

The spelling of 245240663 in words is "two hundred forty-five million, two hundred forty thousand, six hundred sixty-three".