195980515 has 8 divisors (see below), whose sum is σ = 235267488. Its totient is φ = 156723840.

The previous prime is 195980507. The next prime is 195980537. The reversal of 195980515 is 515089591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195980515 - 2³ = 195980507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10650 + ... + 22480.

It is an arithmetic number, because the mean of its divisors is an integer number (29408436).

Almost surely, 2^195980515 is an apocalyptic number.

195980515 is a deficient number, since it is larger than the sum of its proper divisors (39286973).

195980515 is a wasteful number, since it uses less digits than its factorization.

195980515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15149.

The product of its (nonzero) digits is 81000, while the sum is 43.

The square root of 195980515 is about 13999.3040898468. The cubic root of 195980515 is about 580.8593237066.

The spelling of 195980515 in words is "one hundred ninety-five million, nine hundred eighty thousand, five hundred fifteen".