2187195541 has 8 divisors (see below), whose sum is σ = 2277949824. Its totient is φ = 2098106640.

The previous prime is 2187195539. The next prime is 2187195551. The reversal of 2187195541 is 1455917812.

2187195541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2187195541 - 2¹ = 2187195539 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 (2187195551) 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, 413665 + ... + 418918.

It is an arithmetic number, because the mean of its divisors is an integer number (284743728).

Almost surely, 2^2187195541 is an apocalyptic number.

It is an amenable number.

2187195541 is a deficient number, since it is larger than the sum of its proper divisors (90754283).

2187195541 is an equidigital number, since it uses as much as digits as its factorization.

2187195541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832691.

The product of its digits is 100800, while the sum is 43.

The square root of 2187195541 is about 46767.4624177964. The cubic root of 2187195541 is about 1298.0632978471.

The spelling of 2187195541 in words is "two billion, one hundred eighty-seven million, one hundred ninety-five thousand, five hundred forty-one".