191317048 has 32 divisors (see below), whose sum is σ = 409041360. Its totient is φ = 83105280.

The previous prime is 191317039. The next prime is 191317051. The reversal of 191317048 is 840713191.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 7 ways as a sum of consecutive naturals, for example, 52338 + ... + 55873.

Almost surely, 2^191317048 is an apocalyptic number.

It is an amenable number.

191317048 is an abundant number, since it is smaller than the sum of its proper divisors (217724312).

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

191317048 is a wasteful number, since it uses less digits than its factorization.

191317048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108247 (or 108243 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 191317048 is about 13831.7405990714. The cubic root of 191317048 is about 576.2149965798.

The spelling of 191317048 in words is "one hundred ninety-one million, three hundred seventeen thousand, forty-eight".