191427006 has 8 divisors (see below), whose sum is σ = 382854024. Its totient is φ = 63809000.

The previous prime is 191427001. The next prime is 191427029. The reversal of 191427006 is 600724191.

It is a happy number.

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

191427006 is an admirable number.

It is a super-2 number, since 2×191427006² = 73288597252248072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191427001) 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 3 ways as a sum of consecutive naturals, for example, 15952245 + ... + 15952256.

It is an arithmetic number, because the mean of its divisors is an integer number (47856753).

Almost surely, 2^191427006 is an apocalyptic number.

191427006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191427006 is a wasteful number, since it uses less digits than its factorization.

191427006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31904506.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 191427006 is about 13835.7148713032. The cubic root of 191427006 is about 576.3253671483.

It can be divided in two parts, 1914 and 27006, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 191427006 in words is "one hundred ninety-one million, four hundred twenty-seven thousand, six".