197612953 has 2 divisors, whose sum is σ = 197612954. Its totient is φ = 197612952.

The previous prime is 197612927. The next prime is 197612983. The reversal of 197612953 is 359216791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192737689 + 4875264 = 13883^2 + 2208^2 .

It is an emirp because it is prime and its reverse (359216791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197612953 - 2¹⁷ = 197481881 is a prime.

It is not a weakly prime, because it can be changed into another prime (197612903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98806476 + 98806477.

It is an arithmetic number, because the mean of its divisors is an integer number (98806477).

Almost surely, 2^197612953 is an apocalyptic number.

It is an amenable number.

197612953 is a deficient number, since it is larger than the sum of its proper divisors (1).

197612953 is an equidigital number, since it uses as much as digits as its factorization.

197612953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 43.

The square root of 197612953 is about 14057.4874355270. The cubic root of 197612953 is about 582.4676403889.

The spelling of 197612953 in words is "one hundred ninety-seven million, six hundred twelve thousand, nine hundred fifty-three".