1118153256 has 48 divisors (see below), whose sum is σ = 3072619200. Its totient is φ = 338833440.

The previous prime is 1118153237. The next prime is 1118153273. The reversal of 1118153256 is 6523518111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189616 + ... + 195423.

It is an arithmetic number, because the mean of its divisors is an integer number (64012900).

Almost surely, 2^1118153256 is an apocalyptic number.

It is an amenable number.

1118153256 is an abundant number, since it is smaller than the sum of its proper divisors (1954465944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1118153256 is a wasteful number, since it uses less digits than its factorization.

1118153256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385070 (or 385055 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The square root of 1118153256 is about 33438.7986626314. The cubic root of 1118153256 is about 1037.9277202131.

The spelling of 1118153256 in words is "one billion, one hundred eighteen million, one hundred fifty-three thousand, two hundred fifty-six".