197129753 has 2 divisors, whose sum is σ = 197129754. Its totient is φ = 197129752.

The previous prime is 197129729. The next prime is 197129761. The reversal of 197129753 is 357921791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188320729 + 8809024 = 13723^2 + 2968^2 .

It is a cyclic number.

It is not a de Polignac number, because 197129753 - 2⁸ = 197129497 is a prime.

It is not a weakly prime, because it can be changed into another prime (197129783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98564876 + 98564877.

It is an arithmetic number, because the mean of its divisors is an integer number (98564877).

Almost surely, 2^197129753 is an apocalyptic number.

It is an amenable number.

197129753 is a deficient number, since it is larger than the sum of its proper divisors (1).

197129753 is an equidigital number, since it uses as much as digits as its factorization.

197129753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 44.

The square root of 197129753 is about 14040.2903460007. The cubic root of 197129753 is about 581.9925060934.

The spelling of 197129753 in words is "one hundred ninety-seven million, one hundred twenty-nine thousand, seven hundred fifty-three".