245124045 has 12 divisors (see below), whose sum is σ = 424881756. Its totient is φ = 130732800.

The previous prime is 245124043. The next prime is 245124049. The reversal of 245124045 is 540421542.

245124045 is a `hidden beast` number, since 245 + 12 + 404 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 176863401 + 68260644 = 13299^2 + 8262^2 .

It is not a de Polignac number, because 245124045 - 2¹ = 245124043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245124043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2723556 + ... + 2723645.

It is an arithmetic number, because the mean of its divisors is an integer number (35406813).

Almost surely, 2^245124045 is an apocalyptic number.

It is an amenable number.

245124045 is a deficient number, since it is larger than the sum of its proper divisors (179757711).

245124045 is a wasteful number, since it uses less digits than its factorization.

245124045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447212 (or 5447209 counting only the distinct ones).

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

The square root of 245124045 is about 15656.4378132447. The cubic root of 245124045 is about 625.8380608109.

Adding to 245124045 its reverse (540421542), we get a palindrome (785545587).

The spelling of 245124045 in words is "two hundred forty-five million, one hundred twenty-four thousand, forty-five".