1145442194 has 16 divisors (see below), whose sum is σ = 1868298432. Its totient is φ = 523531728.

The previous prime is 1145442073. The next prime is 1145442223. The reversal of 1145442194 is 4912445411.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 211184 + ... + 216539.

It is an arithmetic number, because the mean of its divisors is an integer number (116768652).

Almost surely, 2^1145442194 is an apocalyptic number.

1145442194 is a deficient number, since it is larger than the sum of its proper divisors (722856238).

1145442194 is a wasteful number, since it uses less digits than its factorization.

1145442194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427841.

The product of its digits is 23040, while the sum is 35.

The square root of 1145442194 is about 33844.3820153360. The cubic root of 1145442194 is about 1046.3036145788.

The spelling of 1145442194 in words is "one billion, one hundred forty-five million, four hundred forty-two thousand, one hundred ninety-four".