2174545156 has 12 divisors (see below), whose sum is σ = 4349090368. Its totient is φ = 931947912.

The previous prime is 2174545151. The next prime is 2174545171. The reversal of 2174545156 is 6515454712.

2174545156 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2174545151) 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 3 ways as a sum of consecutive naturals, for example, 38831136 + ... + 38831191.

Almost surely, 2^2174545156 is an apocalyptic number.

It is an amenable number.

2174545156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2174545156 is a wasteful number, since it uses less digits than its factorization.

2174545156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77662338 (or 77662336 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 2174545156 is about 46632.0185709347. The cubic root of 2174545156 is about 1295.5558614081. Note that the first 3 decimals are identical.

Adding to 2174545156 its reverse (6515454712), we get a palindrome (8689999868).

The spelling of 2174545156 in words is "two billion, one hundred seventy-four million, five hundred forty-five thousand, one hundred fifty-six".