1133955612 has 72 divisors (see below), whose sum is σ = 3000606336. Its totient is φ = 374418288.

The previous prime is 1133955601. The next prime is 1133955649. The reversal of 1133955612 is 2165593311.

It is a happy number.

1133955612 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 95 + 561 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98553 + ... + 109455.

It is an arithmetic number, because the mean of its divisors is an integer number (41675088).

Almost surely, 2^1133955612 is an apocalyptic number.

1133955612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133955612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500303168).

1133955612 is an abundant number, since it is smaller than the sum of its proper divisors (1866650724).

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

1133955612 is a wasteful number, since it uses less digits than its factorization.

1133955612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11029 (or 11015 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 1133955612 is about 33674.2574082934. The cubic root of 1133955612 is about 1042.7943871270.

The spelling of 1133955612 in words is "one billion, one hundred thirty-three million, nine hundred fifty-five thousand, six hundred twelve".