196761543 has 16 divisors (see below), whose sum is σ = 289650816. Its totient is φ = 117811040.

The previous prime is 196761533. The next prime is 196761563. The reversal of 196761543 is 345167691.

It is a cyclic number.

It is not a de Polignac number, because 196761543 - 2⁸ = 196761287 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 196761495 and 196761504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196761533) 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, 33180 + ... + 38657.

It is an arithmetic number, because the mean of its divisors is an integer number (18103176).

Almost surely, 2^196761543 is an apocalyptic number.

196761543 is a deficient number, since it is larger than the sum of its proper divisors (92889273).

196761543 is a wasteful number, since it uses less digits than its factorization.

196761543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71934.

The product of its digits is 136080, while the sum is 42.

The square root of 196761543 is about 14027.1715965835. The cubic root of 196761543 is about 581.6299208412.

The spelling of 196761543 in words is "one hundred ninety-six million, seven hundred sixty-one thousand, five hundred forty-three".