196512517 has 4 divisors (see below), whose sum is σ = 196549920. Its totient is φ = 196475116.

The previous prime is 196512493. The next prime is 196512521. The reversal of 196512517 is 715215691.

196512517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196512517 - 2¹¹ = 196510469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196512557) 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, 9217 + ... + 21862.

It is an arithmetic number, because the mean of its divisors is an integer number (49137480).

Almost surely, 2^196512517 is an apocalyptic number.

It is an amenable number.

196512517 is a deficient number, since it is larger than the sum of its proper divisors (37403).

196512517 is an equidigital number, since it uses as much as digits as its factorization.

196512517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37402.

The product of its digits is 18900, while the sum is 37.

The square root of 196512517 is about 14018.2922283708. The cubic root of 196512517 is about 581.3844424511.

The spelling of 196512517 in words is "one hundred ninety-six million, five hundred twelve thousand, five hundred seventeen".