245020653 has 8 divisors (see below), whose sum is σ = 362993600. Its totient is φ = 163347084.

The previous prime is 245020651. The next prime is 245020667. The reversal of 245020653 is 356020542.

245020653 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 2 + 0 + 653 = 666.

It is not a de Polignac number, because 245020653 - 2¹ = 245020651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9074839 = 245020653 / (2 + 4 + 5 + 0 + 2 + 0 + 6 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245020651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4537393 + ... + 4537446.

It is an arithmetic number, because the mean of its divisors is an integer number (45374200).

Almost surely, 2^245020653 is an apocalyptic number.

It is an amenable number.

245020653 is a deficient number, since it is larger than the sum of its proper divisors (117972947).

245020653 is an equidigital number, since it uses as much as digits as its factorization.

245020653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074848 (or 9074842 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 245020653 is about 15653.1355644804. The cubic root of 245020653 is about 625.7500567304.

The spelling of 245020653 in words is "two hundred forty-five million, twenty thousand, six hundred fifty-three".