2031197 has 6 divisors (see below), whose sum is σ = 2362878. Its totient is φ = 1740984.

The previous prime is 2031187. The next prime is 2031217. The reversal of 2031197 is 7911302.

It can be written as a sum of positive squares in only one way, i.e., 1301881 + 729316 = 1141^2 + 854^2 .

It is not a de Polignac number, because 2031197 - 2¹⁰ = 2030173 is a prime.

It is a super-2 number, since 2×2031197² = 8251522505618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20678 + ... + 20775.

It is an arithmetic number, because the mean of its divisors is an integer number (393813).

2^2031197 is an apocalyptic number.

It is an amenable number.

2031197 is a deficient number, since it is larger than the sum of its proper divisors (331681).

2031197 is an equidigital number, since it uses as much as digits as its factorization.

2031197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41467 (or 41460 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2031197 is about 1425.2006876226. The cubic root of 2031197 is about 126.6438239818.

Adding to 2031197 its reverse (7911302), we get a palindrome (9942499).

The spelling of 2031197 in words is "two million, thirty-one thousand, one hundred ninety-seven".