16196191 has 8 divisors (see below), whose sum is σ = 17697744. Its totient is φ = 14699520.

The previous prime is 16196179. The next prime is 16196197. The reversal of 16196191 is 19169161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16196191 - 2¹³ = 16187999 is a prime.

16196191 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16196197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12045 + ... + 13321.

It is an arithmetic number, because the mean of its divisors is an integer number (2212218).

Almost surely, 2^16196191 is an apocalyptic number.

16196191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16196191 is a deficient number, since it is larger than the sum of its proper divisors (1501553).

16196191 is a wasteful number, since it uses less digits than its factorization.

16196191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its digits is 2916, while the sum is 34.

The square root of 16196191 is about 4024.4491548534. The cubic root of 16196191 is about 253.0099669557.

The spelling of 16196191 in words is "sixteen million, one hundred ninety-six thousand, one hundred ninety-one".