2081381197 has 8 divisors (see below), whose sum is σ = 2414225216. Its totient is φ = 1757413152.

The previous prime is 2081381191. The next prime is 2081381231. The reversal of 2081381197 is 7911831802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2081381197 - 2¹⁵ = 2081348429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081381191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218488 + ... + 2219425.

It is an arithmetic number, because the mean of its divisors is an integer number (301778152).

Almost surely, 2^2081381197 is an apocalyptic number.

It is an amenable number.

2081381197 is a deficient number, since it is larger than the sum of its proper divisors (332844019).

2081381197 is an equidigital number, since it uses as much as digits as its factorization.

2081381197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437987.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 2081381197 is about 45622.1568648393. The cubic root of 2081381197 is about 1276.7833451963.

The spelling of 2081381197 in words is "two billion, eighty-one million, three hundred eighty-one thousand, one hundred ninety-seven".