245240100045 has 24 divisors (see below), whose sum is σ = 426064589496. Its totient is φ = 130492643328.

The previous prime is 245240100023. The next prime is 245240100059. The reversal of 245240100045 is 540001042542.

It can be written as a sum of positive squares in 4 ways, for example, as 15251756004 + 229988344041 = 123498^2 + 479571^2 .

It is not a de Polignac number, because 245240100045 - 2⁵ = 245240100013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245240099991 and 245240100018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6273564 + ... + 6312533.

It is an arithmetic number, because the mean of its divisors is an integer number (17752691229).

Almost surely, 2^245240100045 is an apocalyptic number.

It is an amenable number.

245240100045 is a deficient number, since it is larger than the sum of its proper divisors (180824489451).

245240100045 is a wasteful number, since it uses less digits than its factorization.

245240100045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12586541 (or 12586538 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 245240100045 its reverse (540001042542), we get a palindrome (785241142587).

The spelling of 245240100045 in words is "two hundred forty-five billion, two hundred forty million, one hundred thousand, forty-five".