245640124 has 6 divisors (see below), whose sum is σ = 429870224. Its totient is φ = 122820060.

The previous prime is 245640079. The next prime is 245640139. The reversal of 245640124 is 421046542.

245640124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 245640092 and 245640101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30705012 + ... + 30705019.

Almost surely, 2^245640124 is an apocalyptic number.

It is an amenable number.

245640124 is a deficient number, since it is larger than the sum of its proper divisors (184230100).

245640124 is a wasteful number, since it uses less digits than its factorization.

245640124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61410035 (or 61410033 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 245640124 is about 15672.9105146428. The cubic root of 245640124 is about 626.2769616933.

Adding to 245640124 its reverse (421046542), we get a palindrome (666686666).

The spelling of 245640124 in words is "two hundred forty-five million, six hundred forty thousand, one hundred twenty-four".