2231372197 has 2 divisors, whose sum is σ = 2231372198. Its totient is φ = 2231372196.

The previous prime is 2231372183. The next prime is 2231372237. The reversal of 2231372197 is 7912731322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2172864996 + 58507201 = 46614^2 + 7649^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231372197 - 2¹¹ = 2231370149 is a prime.

It is a super-3 number, since 3×2231372197³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231372137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115686098 + 1115686099.

It is an arithmetic number, because the mean of its divisors is an integer number (1115686099).

Almost surely, 2^2231372197 is an apocalyptic number.

It is an amenable number.

2231372197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231372197 is an equidigital number, since it uses as much as digits as its factorization.

2231372197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 2231372197 is about 47237.4025217306. The cubic root of 2231372197 is about 1306.7444748009.

The spelling of 2231372197 in words is "two billion, two hundred thirty-one million, three hundred seventy-two thousand, one hundred ninety-seven".