1115156 has 12 divisors (see below), whose sum is σ = 2230368. Its totient is φ = 477912.

The previous prime is 1115131. The next prime is 1115189. The reversal of 1115156 is 6515111.

1115156 is nontrivially palindromic in base 8.

1115156 is an admirable number.

It is a super-3 number, since 3×1115156³ = 4160333357123149248, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19886 + ... + 19941.

It is an arithmetic number, because the mean of its divisors is an integer number (185864).

2^1115156 is an apocalyptic number.

It is an amenable number.

1115156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1115156 is a wasteful number, since it uses less digits than its factorization.

1115156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39838 (or 39836 counting only the distinct ones).

The product of its digits is 150, while the sum is 20.

The square root of 1115156 is about 1056.0094696545. The cubic root of 1115156 is about 103.6999487617.

Subtracting from 1115156 its sum of digits (20), we obtain a square (1115136 = 1056²).

The spelling of 1115156 in words is "one million, one hundred fifteen thousand, one hundred fifty-six".