245432753145 has 24 divisors (see below), whose sum is σ = 425453353416. Its totient is φ = 130886212608.

The previous prime is 245432753123. The next prime is 245432753147. The reversal of 245432753145 is 541357234542.

245432753145 is a `hidden beast` number, since 2 + 4 + 5 + 4 + 327 + 5 + 314 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 148455319401 + 96977433744 = 385299^2 + 311412^2 .

It is not a de Polignac number, because 245432753145 - 2¹¹ = 245432751097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245432753145.

It is not an unprimeable number, because it can be changed into a prime (245432753147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308457 + ... + 765513.

It is an arithmetic number, because the mean of its divisors is an integer number (17727223059).

Almost surely, 2^245432753145 is an apocalyptic number.

It is an amenable number.

245432753145 is a deficient number, since it is larger than the sum of its proper divisors (180020600271).

245432753145 is a wasteful number, since it uses less digits than its factorization.

245432753145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469001 (or 468998 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 45.

Adding to 245432753145 its reverse (541357234542), we get a palindrome (786789987687).

The spelling of 245432753145 in words is "two hundred forty-five billion, four hundred thirty-two million, seven hundred fifty-three thousand, one hundred forty-five".