191132042 has 8 divisors (see below), whose sum is σ = 289235556. Its totient is φ = 94720192.

The previous prime is 191132041. The next prime is 191132057. The reversal of 191132042 is 240231191.

It can be written as a sum of positive squares in 2 ways, for example, as 190964761 + 167281 = 13819^2 + 409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 191131999 and 191132017.

It is not an unprimeable number, because it can be changed into a prime (191132041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422633 + ... + 423084.

Almost surely, 2^191132042 is an apocalyptic number.

191132042 is a deficient number, since it is larger than the sum of its proper divisors (98103514).

191132042 is a wasteful number, since it uses less digits than its factorization.

191132042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845832.

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

The square root of 191132042 is about 13825.0512476446. The cubic root of 191132042 is about 576.0292009534.

The spelling of 191132042 in words is "one hundred ninety-one million, one hundred thirty-two thousand, forty-two".