1245827853 has 12 divisors (see below), whose sum is σ = 1894241440. Its totient is φ = 786838536.

The previous prime is 1245827809. The next prime is 1245827861. The reversal of 1245827853 is 3587285421.

1245827853 is a `hidden beast` number, since 12 + 4 + 582 + 7 + 8 + 53 = 666.

It is not a de Polignac number, because 1245827853 - 2⁶ = 1245827789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1245827799 and 1245827808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245827873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3642601 + ... + 3642942.

Almost surely, 2^1245827853 is an apocalyptic number.

It is an amenable number.

1245827853 is a deficient number, since it is larger than the sum of its proper divisors (648413587).

1245827853 is a wasteful number, since it uses less digits than its factorization.

1245827853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285568 (or 7285565 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 1245827853 is about 35296.2866743798. The cubic root of 1245827853 is about 1076.0175267088.

The spelling of 1245827853 in words is "one billion, two hundred forty-five million, eight hundred twenty-seven thousand, eight hundred fifty-three".