16196545 has 4 divisors (see below), whose sum is σ = 19435860. Its totient is φ = 12957232.

The previous prime is 16196533. The next prime is 16196561. The reversal of 16196545 is 54569161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54569161 = 1409 ⋅38729.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 10608049 = 2364^2 + 3257^2 .

It is a cyclic number.

It is not a de Polignac number, because 16196545 - 2²³ = 7807937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619650 + ... + 1619659.

It is an arithmetic number, because the mean of its divisors is an integer number (4858965).

Almost surely, 2^16196545 is an apocalyptic number.

It is an amenable number.

16196545 is a deficient number, since it is larger than the sum of its proper divisors (3239315).

16196545 is an equidigital number, since it uses as much as digits as its factorization.

16196545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239314.

The product of its digits is 32400, while the sum is 37.

The square root of 16196545 is about 4024.4931357874. The cubic root of 16196545 is about 253.0118102878.

The spelling of 16196545 in words is "sixteen million, one hundred ninety-six thousand, five hundred forty-five".