1111442156 has 48 divisors (see below), whose sum is σ = 2265677568. Its totient is φ = 471979200.

The previous prime is 1111442141. The next prime is 1111442173. The reversal of 1111442156 is 6512441111.

It is a super-2 number, since 2×1111442156² = 2470607332267856672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30746 + ... + 56286.

It is an arithmetic number, because the mean of its divisors is an integer number (47201616).

Almost surely, 2^1111442156 is an apocalyptic number.

It is an amenable number.

1111442156 is an abundant number, since it is smaller than the sum of its proper divisors (1154235412).

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

1111442156 is a wasteful number, since it uses less digits than its factorization.

1111442156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25622 (or 25620 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 1111442156 is about 33338.2986368531. The cubic root of 1111442156 is about 1035.8470217812.

Adding to 1111442156 its reverse (6512441111), we get a palindrome (7623883267).

The spelling of 1111442156 in words is "one billion, one hundred eleven million, four hundred forty-two thousand, one hundred fifty-six".