1171060643 has 4 divisors (see below), whose sum is σ = 1171136088. Its totient is φ = 1170985200.

The previous prime is 1171060633. The next prime is 1171060699. The reversal of 1171060643 is 3460601711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1171060643 - 2¹⁰ = 1171059619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171060633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4946 + ... + 48647.

It is an arithmetic number, because the mean of its divisors is an integer number (292784022).

Almost surely, 2^1171060643 is an apocalyptic number.

1171060643 is a deficient number, since it is larger than the sum of its proper divisors (75445).

1171060643 is an equidigital number, since it uses as much as digits as its factorization.

1171060643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75444.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1171060643 is about 34220.7633316383. The cubic root of 1171060643 is about 1054.0465598195.

The spelling of 1171060643 in words is "one billion, one hundred seventy-one million, sixty thousand, six hundred forty-three".