196980545 has 4 divisors (see below), whose sum is σ = 236376660. Its totient is φ = 157584432.

The previous prime is 196980493. The next prime is 196980559. The reversal of 196980545 is 545089691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545089691 = 47 ⋅11597653.

It can be written as a sum of positive squares in 2 ways, for example, as 67043344 + 129937201 = 8188^2 + 11399^2 .

It is a cyclic number.

It is not a de Polignac number, because 196980545 - 2⁶ = 196980481 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 196980545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19698050 + ... + 19698059.

It is an arithmetic number, because the mean of its divisors is an integer number (59094165).

Almost surely, 2^196980545 is an apocalyptic number.

It is an amenable number.

196980545 is a deficient number, since it is larger than the sum of its proper divisors (39396115).

196980545 is an equidigital number, since it uses as much as digits as its factorization.

196980545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39396114.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 196980545 is about 14034.9757748277. The cubic root of 196980545 is about 581.8456318392.

The spelling of 196980545 in words is "one hundred ninety-six million, nine hundred eighty thousand, five hundred forty-five".