1121379159 has 4 divisors (see below), whose sum is σ = 1495172216. Its totient is φ = 747586104.

The previous prime is 1121379131. The next prime is 1121379179. The reversal of 1121379159 is 9519731211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1121379159 - 2²¹ = 1119282007 is a prime.

It is a super-3 number, since 3×1121379159³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121379179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186896524 + ... + 186896529.

It is an arithmetic number, because the mean of its divisors is an integer number (373793054).

Almost surely, 2^1121379159 is an apocalyptic number.

1121379159 is a deficient number, since it is larger than the sum of its proper divisors (373793057).

1121379159 is an equidigital number, since it uses as much as digits as its factorization.

1121379159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373793056.

The product of its digits is 17010, while the sum is 39.

The square root of 1121379159 is about 33486.9998506883. Note that the first 3 decimals coincide. The cubic root of 1121379159 is about 1038.9249118903.

The spelling of 1121379159 in words is "one billion, one hundred twenty-one million, three hundred seventy-nine thousand, one hundred fifty-nine".