191955852 has 144 divisors (see below), whose sum is σ = 563217760. Its totient is φ = 56453760.

The previous prime is 191955839. The next prime is 191955923. The reversal of 191955852 is 258559191.

191955852 is a `hidden beast` number, since 1 + 91 + 9 + 558 + 5 + 2 = 666.

Its product of digits (162000) is a multiple of the sum of its prime divisors (450).

It is a junction number, because it is equal to n+sod(n) for n = 191955798 and 191955807.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483318 + ... + 483714.

Almost surely, 2^191955852 is an apocalyptic number.

191955852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191955852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281608880).

191955852 is an abundant number, since it is smaller than the sum of its proper divisors (371261908).

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

191955852 is a wasteful number, since it uses less digits than its factorization.

191955852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 450 counting only the distinct ones).

The product of its digits is 162000, while the sum is 45.

The square root of 191955852 is about 13854.8133152345. The cubic root of 191955852 is about 576.8556077654.

The spelling of 191955852 in words is "one hundred ninety-one million, nine hundred fifty-five thousand, eight hundred fifty-two".