1183136940 has 36 divisors (see below), whose sum is σ = 3588849264. Its totient is φ = 315503136.

The previous prime is 1183136923. The next prime is 1183136963. The reversal of 1183136940 is 496313811.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1183136895 and 1183136904.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3286312 + ... + 3286671.

Almost surely, 2^1183136940 is an apocalyptic number.

1183136940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1183136940 is an abundant number, since it is smaller than the sum of its proper divisors (2405712324).

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

1183136940 is a wasteful number, since it uses less digits than its factorization.

1183136940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572998 (or 6572993 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1183136940 is about 34396.7576960387. The cubic root of 1183136940 is about 1057.6573814691.

The spelling of 1183136940 in words is "one billion, one hundred eighty-three million, one hundred thirty-six thousand, nine hundred forty".