191392085 has 8 divisors (see below), whose sum is σ = 239656320. Its totient is φ = 146456464.

The previous prime is 191392079. The next prime is 191392121. The reversal of 191392085 is 580293191.

191392085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 191392085 - 2⁶ = 191392021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832025 + ... + 832254.

It is an arithmetic number, because the mean of its divisors is an integer number (29957040).

Almost surely, 2^191392085 is an apocalyptic number.

It is an amenable number.

191392085 is a deficient number, since it is larger than the sum of its proper divisors (48264235).

191392085 is a wasteful number, since it uses less digits than its factorization.

191392085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664307.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 191392085 is about 13834.4528261872. The cubic root of 191392085 is about 576.2903197038.

The spelling of 191392085 in words is "one hundred ninety-one million, three hundred ninety-two thousand, eighty-five".