191271696 has 120 divisors (see below), whose sum is σ = 627129504. Its totient is φ = 49674240.

The previous prime is 191271677. The next prime is 191271701. The reversal of 191271696 is 696172191.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 22176 + ... + 29568.

Almost surely, 2^191271696 is an apocalyptic number.

191271696 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 191271696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313564752).

191271696 is an abundant number, since it is smaller than the sum of its proper divisors (435857808).

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

191271696 is a wasteful number, since it uses less digits than its factorization.

191271696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7429 (or 7416 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The square root of 191271696 is about 13830.1010842293. The cubic root of 191271696 is about 576.1694620984.

The spelling of 191271696 in words is "one hundred ninety-one million, two hundred seventy-one thousand, six hundred ninety-six".