245506923 has 16 divisors (see below), whose sum is σ = 382857600. Its totient is φ = 155056680.

The previous prime is 245506901. The next prime is 245506931. The reversal of 245506923 is 329605542.

245506923 is a `hidden beast` number, since 24 + 550 + 69 + 23 = 666.

245506923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245506923 - 2¹² = 245502827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245506973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238773 + ... + 239798.

It is an arithmetic number, because the mean of its divisors is an integer number (23928600).

Almost surely, 2^245506923 is an apocalyptic number.

245506923 is a deficient number, since it is larger than the sum of its proper divisors (137350677).

245506923 is a wasteful number, since it uses less digits than its factorization.

245506923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478599 (or 478593 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 245506923 is about 15668.6605362424. The cubic root of 245506923 is about 626.1637394187.

The spelling of 245506923 in words is "two hundred forty-five million, five hundred six thousand, nine hundred twenty-three".