1190661673 has 2 divisors, whose sum is σ = 1190661674. Its totient is φ = 1190661672.

The previous prime is 1190661569. The next prime is 1190661683. The reversal of 1190661673 is 3761660911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871253289 + 319408384 = 29517^2 + 17872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1190661673 - 2⁹ = 1190661161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1190661683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595330836 + 595330837.

It is an arithmetic number, because the mean of its divisors is an integer number (595330837).

Almost surely, 2^1190661673 is an apocalyptic number.

It is an amenable number.

1190661673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190661673 is an equidigital number, since it uses as much as digits as its factorization.

1190661673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1190661673 is about 34505.9657595611. The cubic root of 1190661673 is about 1059.8948729847.

The spelling of 1190661673 in words is "one billion, one hundred ninety million, six hundred sixty-one thousand, six hundred seventy-three".