191054964 has 12 divisors (see below), whose sum is σ = 445794944. Its totient is φ = 63684984.

The previous prime is 191054947. The next prime is 191054971. The reversal of 191054964 is 469450191.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×191054964³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 7960612 + ... + 7960635.

Almost surely, 2^191054964 is an apocalyptic number.

It is an amenable number.

191054964 is an abundant number, since it is smaller than the sum of its proper divisors (254739980).

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

191054964 is a wasteful number, since it uses less digits than its factorization.

191054964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15921254 (or 15921252 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 191054964 is about 13822.2633457766. The cubic root of 191054964 is about 575.9517585948.

The spelling of 191054964 in words is "one hundred ninety-one million, fifty-four thousand, nine hundred sixty-four".