2196087231 has 24 divisors (see below), whose sum is σ = 3175963536. Its totient is φ = 1349187840.

The previous prime is 2196087227. The next prime is 2196087259. The reversal of 2196087231 is 1327806912.

It is not a de Polignac number, because 2196087231 - 2² = 2196087227 is a prime.

It is a super-2 number, since 2×2196087231² = 9645598252322494722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 2196087231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196087221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331851 + ... + 338403.

It is an arithmetic number, because the mean of its divisors is an integer number (132331814).

Almost surely, 2^2196087231 is an apocalyptic number.

2196087231 is a deficient number, since it is larger than the sum of its proper divisors (979876305).

2196087231 is a wasteful number, since it uses less digits than its factorization.

2196087231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7243 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2196087231 is about 46862.4287782868. The cubic root of 2196087231 is about 1299.8199417286.

The spelling of 2196087231 in words is "two billion, one hundred ninety-six million, eighty-seven thousand, two hundred thirty-one".