1153600643 has 4 divisors (see below), whose sum is σ = 1242339168. Its totient is φ = 1064862120.

The previous prime is 1153600639. The next prime is 1153600663. The reversal of 1153600643 is 3460063511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3460063511 = 8293 ⋅417227.

It is a cyclic number.

It is not a de Polignac number, because 1153600643 - 2² = 1153600639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153600663) 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 3 ways as a sum of consecutive naturals, for example, 44369243 + ... + 44369268.

It is an arithmetic number, because the mean of its divisors is an integer number (310584792).

Almost surely, 2^1153600643 is an apocalyptic number.

1153600643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1153600643 is a deficient number, since it is larger than the sum of its proper divisors (88738525).

1153600643 is an equidigital number, since it uses as much as digits as its factorization.

1153600643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88738524.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1153600643 is about 33964.6970102782. The cubic root of 1153600643 is about 1048.7818505094.

The spelling of 1153600643 in words is "one billion, one hundred fifty-three million, six hundred thousand, six hundred forty-three".