1150611643 has 2 divisors, whose sum is σ = 1150611644. Its totient is φ = 1150611642.

The previous prime is 1150611617. The next prime is 1150611667. The reversal of 1150611643 is 3461160511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1150611643 - 2⁵ = 1150611611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1150611613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575305821 + 575305822.

It is an arithmetic number, because the mean of its divisors is an integer number (575305822).

Almost surely, 2^1150611643 is an apocalyptic number.

1150611643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150611643 is an equidigital number, since it uses as much as digits as its factorization.

1150611643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1150611643 is about 33920.6669008733. Note that the first 3 decimals coincide. The cubic root of 1150611643 is about 1047.8752628548.

The spelling of 1150611643 in words is "one billion, one hundred fifty million, six hundred eleven thousand, six hundred forty-three".