196590143 has 4 divisors (see below), whose sum is σ = 200772960. Its totient is φ = 192407328.

The previous prime is 196590113. The next prime is 196590179. The reversal of 196590143 is 341095691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341095691 = 5791 ⋅58901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196590143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196590097 and 196590106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196590113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091338 + ... + 2091431.

It is an arithmetic number, because the mean of its divisors is an integer number (50193240).

Almost surely, 2^196590143 is an apocalyptic number.

196590143 is a deficient number, since it is larger than the sum of its proper divisors (4182817).

196590143 is an equidigital number, since it uses as much as digits as its factorization.

196590143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182816.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 196590143 is about 14021.0606945409. The cubic root of 196590143 is about 581.4609848317.

The spelling of 196590143 in words is "one hundred ninety-six million, five hundred ninety thousand, one hundred forty-three".