1191053941 has 24 divisors (see below), whose sum is σ = 1500750720. Its totient is φ = 925272480.

The previous prime is 1191053933. The next prime is 1191053951. The reversal of 1191053941 is 1493501911.

It is not a de Polignac number, because 1191053941 - 2³ = 1191053933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1191053897 and 1191053906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191053951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302115 + ... + 306031.

It is an arithmetic number, because the mean of its divisors is an integer number (62531280).

Almost surely, 2^1191053941 is an apocalyptic number.

1191053941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1191053941 is a deficient number, since it is larger than the sum of its proper divisors (309696779).

1191053941 is a wasteful number, since it uses less digits than its factorization.

1191053941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1191053941 is about 34511.6493520666. The cubic root of 1191053941 is about 1060.0112556655.

The spelling of 1191053941 in words is "one billion, one hundred ninety-one million, fifty-three thousand, nine hundred forty-one".