1232863281 has 48 divisors (see below), whose sum is σ = 1987057920. Its totient is φ = 755127360.

The previous prime is 1232863271. The next prime is 1232863297. The reversal of 1232863281 is 1823682321.

1232863281 is a `hidden beast` number, since 1 + 2 + 328 + 6 + 328 + 1 = 666.

It is not a de Polignac number, because 1232863281 - 2⁶ = 1232863217 is a prime.

It is a super-2 number, since 2×1232863281² = 3039903739276169922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232863231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1236075 + ... + 1237071.

It is an arithmetic number, because the mean of its divisors is an integer number (41397040).

Almost surely, 2^1232863281 is an apocalyptic number.

It is an amenable number.

1232863281 is a deficient number, since it is larger than the sum of its proper divisors (754194639).

1232863281 is a wasteful number, since it uses less digits than its factorization.

1232863281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1284 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1232863281 is about 35112.1528961128. The cubic root of 1232863281 is about 1072.2720176567.

The spelling of 1232863281 in words is "one billion, two hundred thirty-two million, eight hundred sixty-three thousand, two hundred eighty-one".