191054056 has 16 divisors (see below), whose sum is σ = 359229600. Its totient is φ = 95259504.

The previous prime is 191054033. The next prime is 191054069. The reversal of 191054056 is 650450191.

It is a super-2 number, since 2×191054056² = 73003304628102272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30390 + ... + 36133.

It is an arithmetic number, because the mean of its divisors is an integer number (22451850).

Almost surely, 2^191054056 is an apocalyptic number.

It is an amenable number.

191054056 is a deficient number, since it is larger than the sum of its proper divisors (168175544).

191054056 is a wasteful number, since it uses less digits than its factorization.

191054056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66888 (or 66884 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 191054056 is about 13822.2305001762. The cubic root of 191054056 is about 575.9508461784.

The spelling of 191054056 in words is "one hundred ninety-one million, fifty-four thousand, fifty-six".