197400233 has 2 divisors, whose sum is σ = 197400234. Its totient is φ = 197400232.

The previous prime is 197400227. The next prime is 197400241. The reversal of 197400233 is 332004791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127961344 + 69438889 = 11312^2 + 8333^2 .

It is a cyclic number.

It is not a de Polignac number, because 197400233 - 2¹⁸ = 197138089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 197400196 and 197400205.

It is not a weakly prime, because it can be changed into another prime (197420233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98700116 + 98700117.

It is an arithmetic number, because the mean of its divisors is an integer number (98700117).

Almost surely, 2^197400233 is an apocalyptic number.

It is an amenable number.

197400233 is a deficient number, since it is larger than the sum of its proper divisors (1).

197400233 is an equidigital number, since it uses as much as digits as its factorization.

197400233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 197400233 is about 14049.9193236118. The cubic root of 197400233 is about 582.2585667100.

The spelling of 197400233 in words is "one hundred ninety-seven million, four hundred thousand, two hundred thirty-three".