1942159138 has 8 divisors (see below), whose sum is σ = 3066567120. Its totient is φ = 919970100.

The previous prime is 1942159127. The next prime is 1942159139. The reversal of 1942159138 is 8319512491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1942159094 and 1942159103.

It is not an unprimeable number, because it can be changed into a prime (1942159139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25554688 + ... + 25554763.

It is an arithmetic number, because the mean of its divisors is an integer number (383320890).

Almost surely, 2^1942159138 is an apocalyptic number.

1942159138 is a deficient number, since it is larger than the sum of its proper divisors (1124407982).

1942159138 is a wasteful number, since it uses less digits than its factorization.

1942159138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51109472.

The product of its digits is 77760, while the sum is 43.

The square root of 1942159138 is about 44069.9346266817. The cubic root of 1942159138 is about 1247.6562242254.

The spelling of 1942159138 in words is "one billion, nine hundred forty-two million, one hundred fifty-nine thousand, one hundred thirty-eight".