1121836956 has 24 divisors (see below), whose sum is σ = 2621708544. Its totient is φ = 373361520.

The previous prime is 1121836939. The next prime is 1121836973. The reversal of 1121836956 is 6596381211.

It is an interprime number because it is at equal distance from previous prime (1121836939) and next prime (1121836973).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64980 + ... + 80411.

It is an arithmetic number, because the mean of its divisors is an integer number (109237856).

Almost surely, 2^1121836956 is an apocalyptic number.

It is an amenable number.

1121836956 is an abundant number, since it is smaller than the sum of its proper divisors (1499871588).

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

1121836956 is a wasteful number, since it uses less digits than its factorization.

1121836956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146041 (or 146039 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1121836956 is about 33493.8345968329. The cubic root of 1121836956 is about 1039.0662711549.

The spelling of 1121836956 in words is "one billion, one hundred twenty-one million, eight hundred thirty-six thousand, nine hundred fifty-six".