2142893194 has 16 divisors (see below), whose sum is σ = 3462608520. Its totient is φ = 988738560.

The previous prime is 2142893189. The next prime is 2142893213. The reversal of 2142893194 is 4913982412.

It can be written as a sum of positive squares in 4 ways, for example, as 1951430625 + 191462569 = 44175^2 + 13837^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2142893194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97374 + ... + 117334.

Almost surely, 2^2142893194 is an apocalyptic number.

2142893194 is a deficient number, since it is larger than the sum of its proper divisors (1319715326).

2142893194 is a wasteful number, since it uses less digits than its factorization.

2142893194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24105.

The product of its digits is 124416, while the sum is 43.

The square root of 2142893194 is about 46291.3943838377. The cubic root of 2142893194 is about 1289.2392193045.

The spelling of 2142893194 in words is "two billion, one hundred forty-two million, eight hundred ninety-three thousand, one hundred ninety-four".