1111956 has 24 divisors (see below), whose sum is σ = 2731680. Its totient is φ = 351072.

The previous prime is 1111949. The next prime is 1111963. The reversal of 1111956 is 6591111.

It is an interprime number because it is at equal distance from previous prime (1111949) and next prime (1111963).

It is a super-2 number, since 2×1111956² = 2472892291872, which contains 22 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (113820).

2^1111956 is an apocalyptic number.

It is an amenable number.

1111956 is an abundant number, since it is smaller than the sum of its proper divisors (1619724).

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

1111956 is a wasteful number, since it uses less digits than its factorization.

1111956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903 (or 4901 counting only the distinct ones).

The product of its digits is 270, while the sum is 24.

The square root of 1111956 is about 1054.4932432216. The cubic root of 1111956 is about 103.6006628760.

It can be divided in two parts, 11119 and 56, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 1111956 in words is "one million, one hundred eleven thousand, nine hundred fifty-six".