16196189 has 16 divisors (see below), whose sum is σ = 18506880. Its totient is φ = 14077440.

The previous prime is 16196179. The next prime is 16196197. The reversal of 16196189 is 98169161.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16196189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16196119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12632 + ... + 13854.

It is an arithmetic number, because the mean of its divisors is an integer number (1156680).

Almost surely, 2^16196189 is an apocalyptic number.

16196189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16196189 is a deficient number, since it is larger than the sum of its proper divisors (2310691).

16196189 is a wasteful number, since it uses less digits than its factorization.

16196189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its digits is 23328, while the sum is 41.

The square root of 16196189 is about 4024.4489063722. The cubic root of 16196189 is about 253.0099565413.

The spelling of 16196189 in words is "sixteen million, one hundred ninety-six thousand, one hundred eighty-nine".