191054966 has 4 divisors (see below), whose sum is σ = 286582452. Its totient is φ = 95527482.

The previous prime is 191054947. The next prime is 191054971. The reversal of 191054966 is 669450191.

191054966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669450191 = 17 ⋅39379423.

It is a super-2 number, since 2×191054966² = 73004000066522312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47763740 + ... + 47763743.

It is an arithmetic number, because the mean of its divisors is an integer number (71645613).

Almost surely, 2^191054966 is an apocalyptic number.

191054966 is a deficient number, since it is larger than the sum of its proper divisors (95527486).

191054966 is an equidigital number, since it uses as much as digits as its factorization.

191054966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95527485.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 191054966 is about 13822.2634181237. The cubic root of 191054966 is about 575.9517606045.

The spelling of 191054966 in words is "one hundred ninety-one million, fifty-four thousand, nine hundred sixty-six".