196143405 has 16 divisors (see below), whose sum is σ = 314539200. Its totient is φ = 104373248.

The previous prime is 196143383. The next prime is 196143419. The reversal of 196143405 is 504341691.

It is a cyclic number.

It is not a de Polignac number, because 196143405 - 2⁵ = 196143373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7827 + ... + 21296.

It is an arithmetic number, because the mean of its divisors is an integer number (19658700).

Almost surely, 2^196143405 is an apocalyptic number.

196143405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196143405 is a deficient number, since it is larger than the sum of its proper divisors (118395795).

196143405 is a wasteful number, since it uses less digits than its factorization.

196143405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29580.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 196143405 is about 14005.1206706690. The cubic root of 196143405 is about 581.0202070029.

The spelling of 196143405 in words is "one hundred ninety-six million, one hundred forty-three thousand, four hundred five".