191385102 has 32 divisors (see below), whose sum is σ = 388179360. Its totient is φ = 62899200.

The previous prime is 191385097. The next prime is 191385107. The reversal of 191385102 is 201583191.

It is an interprime number because it is at equal distance from previous prime (191385097) and next prime (191385107).

It is a self number, because there is not a number n which added to its sum of digits gives 191385102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191385107) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 189174 + ... + 190182.

It is an arithmetic number, because the mean of its divisors is an integer number (12130605).

Almost surely, 2^191385102 is an apocalyptic number.

191385102 is an abundant number, since it is smaller than the sum of its proper divisors (196794258).

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

191385102 is a wasteful number, since it uses less digits than its factorization.

191385102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 191385102 is about 13834.2004467190. The cubic root of 191385102 is about 576.2833109078.

The spelling of 191385102 in words is "one hundred ninety-one million, three hundred eighty-five thousand, one hundred two".