1197505973 has 2 divisors, whose sum is σ = 1197505974. Its totient is φ = 1197505972.

The previous prime is 1197505927. The next prime is 1197506029. The reversal of 1197505973 is 3795057911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1138185169 + 59320804 = 33737^2 + 7702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197505973 - 2⁶ = 1197505909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1197535973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598752986 + 598752987.

It is an arithmetic number, because the mean of its divisors is an integer number (598752987).

Almost surely, 2^1197505973 is an apocalyptic number.

It is an amenable number.

1197505973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197505973 is an equidigital number, since it uses as much as digits as its factorization.

1197505973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 297675, while the sum is 47.

The square root of 1197505973 is about 34604.9992486635. Note that the first 3 decimals coincide. The cubic root of 1197505973 is about 1061.9218643564.

The spelling of 1197505973 in words is "one billion, one hundred ninety-seven million, five hundred five thousand, nine hundred seventy-three".