2145294184 has 24 divisors (see below), whose sum is σ = 4421346930. Its totient is φ = 975133280.

The previous prime is 2145294167. The next prime is 2145294187. The reversal of 2145294184 is 4814925412.

It can be written as a sum of positive squares in only one way, i.e., 2136473284 + 8820900 = 46222^2 + 2970^2 .

It is not an unprimeable number, because it can be changed into a prime (2145294187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1107139 + ... + 1109074.

Almost surely, 2^2145294184 is an apocalyptic number.

It is an amenable number.

2145294184 is an abundant number, since it is smaller than the sum of its proper divisors (2276052746).

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

2145294184 is a wasteful number, since it uses less digits than its factorization.

2145294184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216241 (or 2216226 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 2145294184 is about 46317.3205615351. The cubic root of 2145294184 is about 1289.7205460000.

The spelling of 2145294184 in words is "two billion, one hundred forty-five million, two hundred ninety-four thousand, one hundred eighty-four".