197102237 has 2 divisors, whose sum is σ = 197102238. Its totient is φ = 197102236.

The previous prime is 197102231. The next prime is 197102291. The reversal of 197102237 is 732201791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172291876 + 24810361 = 13126^2 + 4981^2 .

It is a cyclic number.

It is not a de Polignac number, because 197102237 - 2⁴ = 197102221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197102231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98551118 + 98551119.

It is an arithmetic number, because the mean of its divisors is an integer number (98551119).

Almost surely, 2^197102237 is an apocalyptic number.

It is an amenable number.

197102237 is a deficient number, since it is larger than the sum of its proper divisors (1).

197102237 is an equidigital number, since it uses as much as digits as its factorization.

197102237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 197102237 is about 14039.3104175383. The cubic root of 197102237 is about 581.9654260430.

The spelling of 197102237 in words is "one hundred ninety-seven million, one hundred two thousand, two hundred thirty-seven".