196509273 has 16 divisors (see below), whose sum is σ = 278847360. Its totient is φ = 122667776.

The previous prime is 196509221. The next prime is 196509277. The reversal of 196509273 is 372905691.

It is a cyclic number.

It is not a de Polignac number, because 196509273 - 2¹⁷ = 196378201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196509277) 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, 268 + ... + 19826.

It is an arithmetic number, because the mean of its divisors is an integer number (17427960).

Almost surely, 2^196509273 is an apocalyptic number.

It is an amenable number.

196509273 is a deficient number, since it is larger than the sum of its proper divisors (82338087).

196509273 is a wasteful number, since it uses less digits than its factorization.

196509273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 196509273 is about 14018.1765219304. The cubic root of 196509273 is about 581.3812432970.

The spelling of 196509273 in words is "one hundred ninety-six million, five hundred nine thousand, two hundred seventy-three".