20232197 has 2 divisors, whose sum is σ = 20232198. Its totient is φ = 20232196.

The previous prime is 20232151. The next prime is 20232211. The reversal of 20232197 is 79123202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15570916 + 4661281 = 3946^2 + 2159^2 .

It is a cyclic number.

It is not a de Polignac number, because 20232197 - 2⁶ = 20232133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20232127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116098 + 10116099.

It is an arithmetic number, because the mean of its divisors is an integer number (10116099).

Almost surely, 2^20232197 is an apocalyptic number.

It is an amenable number.

20232197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232197 is an equidigital number, since it uses as much as digits as its factorization.

20232197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20232197 is about 4498.0214539284. The cubic root of 20232197 is about 272.4881884733.

Adding to 20232197 its reverse (79123202), we get a palindrome (99355399).

The spelling of 20232197 in words is "twenty million, two hundred thirty-two thousand, one hundred ninety-seven".