197208953 has 2 divisors, whose sum is σ = 197208954. Its totient is φ = 197208952.

The previous prime is 197208937. The next prime is 197208967. The reversal of 197208953 is 359802791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100540729 + 96668224 = 10027^2 + 9832^2 .

It is a cyclic number.

It is not a de Polignac number, because 197208953 - 2⁴ = 197208937 is a prime.

It is a super-2 number, since 2×197208953² = 77782742286712418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197208983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98604476 + 98604477.

It is an arithmetic number, because the mean of its divisors is an integer number (98604477).

Almost surely, 2^197208953 is an apocalyptic number.

It is an amenable number.

197208953 is a deficient number, since it is larger than the sum of its proper divisors (1).

197208953 is an equidigital number, since it uses as much as digits as its factorization.

197208953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 197208953 is about 14043.1105172608. The cubic root of 197208953 is about 582.0704372262.

The spelling of 197208953 in words is "one hundred ninety-seven million, two hundred eight thousand, nine hundred fifty-three".