191963112 has 48 divisors (see below), whose sum is σ = 527509920. Its totient is φ = 58169760.

The previous prime is 191963089. The next prime is 191963117. The reversal of 191963112 is 211369191.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (191963117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30148 + ... + 35955.

It is an arithmetic number, because the mean of its divisors is an integer number (10989790).

Almost surely, 2^191963112 is an apocalyptic number.

191963112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191963112 is an abundant number, since it is smaller than the sum of its proper divisors (335546808).

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

191963112 is a wasteful number, since it uses less digits than its factorization.

191963112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66134 (or 66119 counting only the distinct ones).

The product of its digits is 2916, while the sum is 33.

The square root of 191963112 is about 13855.0753155658. The cubic root of 191963112 is about 576.8628801302.

The spelling of 191963112 in words is "one hundred ninety-one million, nine hundred sixty-three thousand, one hundred twelve".