1115971673 has 2 divisors, whose sum is σ = 1115971674. Its totient is φ = 1115971672.

The previous prime is 1115971663. The next prime is 1115971699. The reversal of 1115971673 is 3761795111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608460889 + 507510784 = 24667^2 + 22528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115971673 - 2²⁶ = 1048862809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1115971673.

It is not a weakly prime, because it can be changed into another prime (1115971643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557985836 + 557985837.

It is an arithmetic number, because the mean of its divisors is an integer number (557985837).

Almost surely, 2^1115971673 is an apocalyptic number.

It is an amenable number.

1115971673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115971673 is an equidigital number, since it uses as much as digits as its factorization.

1115971673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 41.

The square root of 1115971673 is about 33406.1622010072. The cubic root of 1115971673 is about 1037.2522613209.

The spelling of 1115971673 in words is "one billion, one hundred fifteen million, nine hundred seventy-one thousand, six hundred seventy-three".