197241377 has 2 divisors, whose sum is σ = 197241378. Its totient is φ = 197241376.

The previous prime is 197241371. The next prime is 197241379. The reversal of 197241377 is 773142791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183765136 + 13476241 = 13556^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 197241377 - 2¹⁰ = 197240353 is a prime.

It is a super-2 number, since 2×197241377² = 77808321601712258, which contains 22 as substring.

Together with 197241379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197241371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98620688 + 98620689.

It is an arithmetic number, because the mean of its divisors is an integer number (98620689).

Almost surely, 2^197241377 is an apocalyptic number.

It is an amenable number.

197241377 is a deficient number, since it is larger than the sum of its proper divisors (1).

197241377 is an equidigital number, since it uses as much as digits as its factorization.

197241377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 197241377 is about 14044.2649149039. The cubic root of 197241377 is about 582.1023357402.

The spelling of 197241377 in words is "one hundred ninety-seven million, two hundred forty-one thousand, three hundred seventy-seven".