1118153121 has 8 divisors (see below), whose sum is σ = 1578569184. Its totient is φ = 701586240.

The previous prime is 1118153117. The next prime is 1118153143. The reversal of 1118153121 is 1213518111.

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

It is not a de Polignac number, because 1118153121 - 2² = 1118153117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1118153091 and 1118153100.

It is not an unprimeable number, because it can be changed into a prime (1118153111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10962235 + ... + 10962336.

It is an arithmetic number, because the mean of its divisors is an integer number (197321148).

Almost surely, 2^1118153121 is an apocalyptic number.

It is an amenable number.

1118153121 is a deficient number, since it is larger than the sum of its proper divisors (460416063).

1118153121 is a wasteful number, since it uses less digits than its factorization.

1118153121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21924591.

The product of its digits is 240, while the sum is 24.

The square root of 1118153121 is about 33438.7966440182. The cubic root of 1118153121 is about 1037.9276784417.

The spelling of 1118153121 in words is "one billion, one hundred eighteen million, one hundred fifty-three thousand, one hundred twenty-one".