1169940643 has 2 divisors, whose sum is σ = 1169940644. Its totient is φ = 1169940642.

The previous prime is 1169940613. The next prime is 1169940647. The reversal of 1169940643 is 3460499611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1169940643 - 2¹³ = 1169932451 is a prime.

It is a super-2 number, since 2×1169940643² = 2737522216286506898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1169940643.

It is not a weakly prime, because it can be changed into another prime (1169940647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584970321 + 584970322.

It is an arithmetic number, because the mean of its divisors is an integer number (584970322).

Almost surely, 2^1169940643 is an apocalyptic number.

1169940643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1169940643 is an equidigital number, since it uses as much as digits as its factorization.

1169940643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1169940643 is about 34204.3950830884. The cubic root of 1169940643 is about 1053.7104233131.

The spelling of 1169940643 in words is "one billion, one hundred sixty-nine million, nine hundred forty thousand, six hundred forty-three".