2171132051 has 8 divisors (see below), whose sum is σ = 2376594864. Its totient is φ = 1967017120.

The previous prime is 2171132017. The next prime is 2171132063. The reversal of 2171132051 is 1502311712.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2171132051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2171132351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333596 + ... + 340041.

It is an arithmetic number, because the mean of its divisors is an integer number (297074358).

Almost surely, 2^2171132051 is an apocalyptic number.

2171132051 is a deficient number, since it is larger than the sum of its proper divisors (205462813).

2171132051 is a wasteful number, since it uses less digits than its factorization.

2171132051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673941.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 2171132051 is about 46595.4080462871. The cubic root of 2171132051 is about 1294.8776837708.

Adding to 2171132051 its reverse (1502311712), we get a palindrome (3673443763).

The spelling of 2171132051 in words is "two billion, one hundred seventy-one million, one hundred thirty-two thousand, fifty-one".