191481696 has 144 divisors (see below), whose sum is σ = 655200000. Its totient is φ = 51819264.

The previous prime is 191481683. The next prime is 191481707. The reversal of 191481696 is 696184191.

191481696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35805 + ... + 40803.

It is an arithmetic number, because the mean of its divisors is an integer number (4550000).

Almost surely, 2^191481696 is an apocalyptic number.

191481696 is a gapful number since it is divisible by the number (16) 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 191481696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327600000).

191481696 is an abundant number, since it is smaller than the sum of its proper divisors (463718304).

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

191481696 is a wasteful number, since it uses less digits than its factorization.

191481696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041 (or 5030 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 191481696 is about 13837.6911368913. The cubic root of 191481696 is about 576.3802466100.

The spelling of 191481696 in words is "one hundred ninety-one million, four hundred eighty-one thousand, six hundred ninety-six".