1133958812 has 48 divisors (see below), whose sum is σ = 2403414720. Its totient is φ = 457766400.

The previous prime is 1133958799. The next prime is 1133958851. The reversal of 1133958812 is 2188593311.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 1133958812.

It is a congruent number.

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, 16262 + ... + 50322.

It is an arithmetic number, because the mean of its divisors is an integer number (50071140).

Almost surely, 2^1133958812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133958812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201707360).

1133958812 is an abundant number, since it is smaller than the sum of its proper divisors (1269455908).

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

1133958812 is a wasteful number, since it uses less digits than its factorization.

1133958812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34142 (or 34140 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 1133958812 is about 33674.3049222994. The cubic root of 1133958812 is about 1042.7953680410.

The spelling of 1133958812 in words is "one billion, one hundred thirty-three million, nine hundred fifty-eight thousand, eight hundred twelve".