2172174061 has 8 divisors (see below), whose sum is σ = 2245169664. Its totient is φ = 2099361360.

The previous prime is 2172174047. The next prime is 2172174083. The reversal of 2172174061 is 1604712712.

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 2172174061 - 2⁷ = 2172173933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172174161) 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, 21361 + ... + 69286.

It is an arithmetic number, because the mean of its divisors is an integer number (280646208).

Almost surely, 2^2172174061 is an apocalyptic number.

It is an amenable number.

2172174061 is a deficient number, since it is larger than the sum of its proper divisors (72995603).

2172174061 is an equidigital number, since it uses as much as digits as its factorization.

2172174061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91451.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 2172174061 is about 46606.5881716308. The cubic root of 2172174061 is about 1295.0848045516.

Adding to 2172174061 its reverse (1604712712), we get a palindrome (3776886773).

The spelling of 2172174061 in words is "two billion, one hundred seventy-two million, one hundred seventy-four thousand, sixty-one".