196931517 has 16 divisors (see below), whose sum is σ = 270200448. Its totient is φ = 127524800.

The previous prime is 196931509. The next prime is 196931531. The reversal of 196931517 is 715139691.

It is a cyclic number.

It is not a de Polignac number, because 196931517 - 2³ = 196931509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196931017) 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, 9928 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (16887528).

Almost surely, 2^196931517 is an apocalyptic number.

It is an amenable number.

196931517 is a deficient number, since it is larger than the sum of its proper divisors (73268931).

196931517 is a wasteful number, since it uses less digits than its factorization.

196931517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12420.

The product of its digits is 51030, while the sum is 42.

The square root of 196931517 is about 14033.2290296995. The cubic root of 196931517 is about 581.7973544916.

The spelling of 196931517 in words is "one hundred ninety-six million, nine hundred thirty-one thousand, five hundred seventeen".