191134040 has 32 divisors (see below), whose sum is σ = 437346000. Its totient is φ = 75156864.

The previous prime is 191134039. The next prime is 191134051. The reversal of 191134040 is 40431191.

191134040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 191133997 and 191134015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38135 + ... + 42854.

Almost surely, 2^191134040 is an apocalyptic number.

191134040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191134040 is an abundant number, since it is smaller than the sum of its proper divisors (246211960).

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

191134040 is a wasteful number, since it uses less digits than its factorization.

191134040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81059 (or 81055 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 191134040 is about 13825.1235075857. The cubic root of 191134040 is about 576.0312081213.

The spelling of 191134040 in words is "one hundred ninety-one million, one hundred thirty-four thousand, forty".