196575139 has 4 divisors (see below), whose sum is σ = 198314856. Its totient is φ = 194835424.

The previous prime is 196575091. The next prime is 196575143. The reversal of 196575139 is 931575691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931575691 = 1097 ⋅849203.

It is a cyclic number.

It is not a de Polignac number, because 196575139 - 2⁷ = 196575011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196575149) 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, 869689 + ... + 869914.

It is an arithmetic number, because the mean of its divisors is an integer number (49578714).

Almost surely, 2^196575139 is an apocalyptic number.

196575139 is a deficient number, since it is larger than the sum of its proper divisors (1739717).

196575139 is a wasteful number, since it uses less digits than its factorization.

196575139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739716.

The product of its digits is 255150, while the sum is 46.

The square root of 196575139 is about 14020.5256320867. The cubic root of 196575139 is about 581.4461918510.

The spelling of 196575139 in words is "one hundred ninety-six million, five hundred seventy-five thousand, one hundred thirty-nine".