1245613256 has 32 divisors (see below), whose sum is σ = 2478924000. Its totient is φ = 584745216.

The previous prime is 1245613219. The next prime is 1245613283. The reversal of 1245613256 is 6523165421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46055 + ... + 67913.

It is an arithmetic number, because the mean of its divisors is an integer number (77466375).

Almost surely, 2^1245613256 is an apocalyptic number.

It is an amenable number.

1245613256 is a deficient number, since it is larger than the sum of its proper divisors (1233310744).

1245613256 is a wasteful number, since it uses less digits than its factorization.

1245613256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22301 (or 22297 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 1245613256 is about 35293.2466061143. The cubic root of 1245613256 is about 1075.9557409139.

Adding to 1245613256 its reverse (6523165421), we get a palindrome (7768778677).

The spelling of 1245613256 in words is "one billion, two hundred forty-five million, six hundred thirteen thousand, two hundred fifty-six".