196581715 has 16 divisors (see below), whose sum is σ = 258071040. Its totient is φ = 142564320.

The previous prime is 196581709. The next prime is 196581719. The reversal of 196581715 is 517185691.

It is not a de Polignac number, because 196581715 - 2¹⁹ = 196057427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196581719) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15316 + ... + 25054.

It is an arithmetic number, because the mean of its divisors is an integer number (16129440).

Almost surely, 2^196581715 is an apocalyptic number.

196581715 is a deficient number, since it is larger than the sum of its proper divisors (61489325).

196581715 is a wasteful number, since it uses less digits than its factorization.

196581715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122.

The product of its digits is 75600, while the sum is 43.

The square root of 196581715 is about 14020.7601434444. The cubic root of 196581715 is about 581.4526754574.

The spelling of 196581715 in words is "one hundred ninety-six million, five hundred eighty-one thousand, seven hundred fifteen".