197652361 has 2 divisors, whose sum is σ = 197652362. Its totient is φ = 197652360.

The previous prime is 197652331. The next prime is 197652379. The reversal of 197652361 is 163256791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197571136 + 81225 = 14056^2 + 285^2 .

It is an emirp because it is prime and its reverse (163256791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197652361 - 2²¹ = 195555209 is a prime.

It is not a weakly prime, because it can be changed into another prime (197652331) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98826180 + 98826181.

It is an arithmetic number, because the mean of its divisors is an integer number (98826181).

Almost surely, 2^197652361 is an apocalyptic number.

It is an amenable number.

197652361 is a deficient number, since it is larger than the sum of its proper divisors (1).

197652361 is an equidigital number, since it uses as much as digits as its factorization.

197652361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 40.

The square root of 197652361 is about 14058.8890386118. The cubic root of 197652361 is about 582.5063564056.

The spelling of 197652361 in words is "one hundred ninety-seven million, six hundred fifty-two thousand, three hundred sixty-one".