191295264 has 48 divisors (see below), whose sum is σ = 512846208. Its totient is φ = 62406912.

The previous prime is 191295263. The next prime is 191295283. The reversal of 191295264 is 462592191.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (191295263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16687 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (10684296).

Almost surely, 2^191295264 is an apocalyptic number.

It is an amenable number.

191295264 is an abundant number, since it is smaller than the sum of its proper divisors (321550944).

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

191295264 is a wasteful number, since it uses less digits than its factorization.

191295264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42457 (or 42449 counting only the distinct ones).

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

The square root of 191295264 is about 13830.9531124937. The cubic root of 191295264 is about 576.1931258264.

The spelling of 191295264 in words is "one hundred ninety-one million, two hundred ninety-five thousand, two hundred sixty-four".