245320523 has 16 divisors (see below), whose sum is σ = 299597760. Its totient is φ = 196079616.

The previous prime is 245320501. The next prime is 245320573. The reversal of 245320523 is 325023542.

It is a cyclic number.

It is not a de Polignac number, because 245320523 - 2¹⁶ = 245254987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245320492 and 245320501.

It is not an unprimeable number, because it can be changed into a prime (245320573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3515 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (18724860).

Almost surely, 2^245320523 is an apocalyptic number.

245320523 is a deficient number, since it is larger than the sum of its proper divisors (54277237).

245320523 is a wasteful number, since it uses less digits than its factorization.

245320523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19046.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 245320523 is about 15662.7112276260. The cubic root of 245320523 is about 626.0052286511.

The spelling of 245320523 in words is "two hundred forty-five million, three hundred twenty thousand, five hundred twenty-three".