245540423 has 2 divisors, whose sum is σ = 245540424. Its totient is φ = 245540422.

The previous prime is 245540417. The next prime is 245540443. The reversal of 245540423 is 324045542.

245540423 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 a de Polignac number, because none of the positive numbers 2^k-245540423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245540443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122770211 + 122770212.

It is an arithmetic number, because the mean of its divisors is an integer number (122770212).

Almost surely, 2^245540423 is an apocalyptic number.

245540423 is a deficient number, since it is larger than the sum of its proper divisors (1).

245540423 is an equidigital number, since it uses as much as digits as its factorization.

245540423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 245540423 is about 15669.7295126623. The cubic root of 245540423 is about 626.1922186309.

Adding to 245540423 its reverse (324045542), we get a palindrome (569585965).

The spelling of 245540423 in words is "two hundred forty-five million, five hundred forty thousand, four hundred twenty-three".