196866545 has 16 divisors (see below), whose sum is σ = 261014400. Its totient is φ = 141782784.

The previous prime is 196866517. The next prime is 196866557. The reversal of 196866545 is 545668691.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 196866545 - 2¹⁴ = 196850161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196866493 and 196866502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48395 + ... + 52304.

It is an arithmetic number, because the mean of its divisors is an integer number (16313400).

Almost surely, 2^196866545 is an apocalyptic number.

It is an amenable number.

196866545 is a deficient number, since it is larger than the sum of its proper divisors (64147855).

196866545 is a wasteful number, since it uses less digits than its factorization.

196866545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100744.

The product of its digits is 1555200, while the sum is 50.

The square root of 196866545 is about 14030.9139046607. The cubic root of 196866545 is about 581.7333649110.

The spelling of 196866545 in words is "one hundred ninety-six million, eight hundred sixty-six thousand, five hundred forty-five".