1121379158 has 8 divisors (see below), whose sum is σ = 1682213400. Its totient is φ = 560641360.

The previous prime is 1121379131. The next prime is 1121379179. The reversal of 1121379158 is 8519731211.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24818 + ... + 53466.

It is an arithmetic number, because the mean of its divisors is an integer number (210276675).

Almost surely, 2^1121379158 is an apocalyptic number.

1121379158 is a deficient number, since it is larger than the sum of its proper divisors (560834242).

1121379158 is a wasteful number, since it uses less digits than its factorization.

1121379158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48222.

The product of its digits is 15120, while the sum is 38.

The square root of 1121379158 is about 33486.9998357572. Note that the first 3 decimals coincide. The cubic root of 1121379158 is about 1038.9249115814.

The spelling of 1121379158 in words is "one billion, one hundred twenty-one million, three hundred seventy-nine thousand, one hundred fifty-eight".