197411281 has 2 divisors, whose sum is σ = 197411282. Its totient is φ = 197411280.

The previous prime is 197411257. The next prime is 197411303. The reversal of 197411281 is 182114791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131882256 + 65529025 = 11484^2 + 8095^2 .

It is a cyclic number.

It is not a de Polignac number, because 197411281 - 2⁷ = 197411153 is a prime.

It is a super-2 number, since 2×197411281² = 77942427732121922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197418281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98705640 + 98705641.

It is an arithmetic number, because the mean of its divisors is an integer number (98705641).

Almost surely, 2^197411281 is an apocalyptic number.

It is an amenable number.

197411281 is a deficient number, since it is larger than the sum of its proper divisors (1).

197411281 is an equidigital number, since it uses as much as digits as its factorization.

197411281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 34.

The square root of 197411281 is about 14050.3124876282. The cubic root of 197411281 is about 582.2694290286.

The spelling of 197411281 in words is "one hundred ninety-seven million, four hundred eleven thousand, two hundred eighty-one".