196564845 has 32 divisors (see below), whose sum is σ = 319334400. Its totient is φ = 103238720.

The previous prime is 196564817. The next prime is 196564847. The reversal of 196564845 is 548465691.

It is not a de Polignac number, because 196564845 - 2⁷ = 196564717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196564794 and 196564803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196564847) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 327856 + ... + 328454.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2^196564845 is an apocalyptic number.

196564845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196564845 is a deficient number, since it is larger than the sum of its proper divisors (122769555).

196564845 is a wasteful number, since it uses less digits than its factorization.

196564845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 1036800, while the sum is 48.

The square root of 196564845 is about 14020.1585226416. The cubic root of 196564845 is about 581.4360421925.

The spelling of 196564845 in words is "one hundred ninety-six million, five hundred sixty-four thousand, eight hundred forty-five".