2181350097 has 24 divisors (see below), whose sum is σ = 3224841984. Its totient is φ = 1420327584.

The previous prime is 2181350089. The next prime is 2181350099. The reversal of 2181350097 is 7900531812.

2181350097 is a `hidden beast` number, since 218 + 1 + 350 + 0 + 97 = 666.

It is not a de Polignac number, because 2181350097 - 2³ = 2181350089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2181350099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96118 + ... + 116624.

It is an arithmetic number, because the mean of its divisors is an integer number (134368416).

Almost surely, 2^2181350097 is an apocalyptic number.

It is an amenable number.

2181350097 is a deficient number, since it is larger than the sum of its proper divisors (1043491887).

2181350097 is a wasteful number, since it uses less digits than its factorization.

2181350097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789 (or 20786 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 2181350097 is about 46704.9258322931. The cubic root of 2181350097 is about 1296.9058756530.

The spelling of 2181350097 in words is "two billion, one hundred eighty-one million, three hundred fifty thousand, ninety-seven".