1163124640 has 24 divisors (see below), whose sum is σ = 2747882340. Its totient is φ = 465249792.

The previous prime is 1163124631. The next prime is 1163124661. The reversal of 1163124640 is 464213611.

It can be written as a sum of positive squares in 2 ways, for example, as 1128691216 + 34433424 = 33596^2 + 5868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1163124599 and 1163124608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3634605 + ... + 3634924.

Almost surely, 2^1163124640 is an apocalyptic number.

1163124640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163124640 is an abundant number, since it is smaller than the sum of its proper divisors (1584757700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163124640 is an equidigital number, since it uses as much as digits as its factorization.

1163124640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7269544 (or 7269536 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1163124640 is about 34104.6131776920. The cubic root of 1163124640 is about 1051.6601522878.

The spelling of 1163124640 in words is "one billion, one hundred sixty-three million, one hundred twenty-four thousand, six hundred forty".