195015 has 8 divisors (see below), whose sum is σ = 312048. Its totient is φ = 104000.

The previous prime is 194989. The next prime is 195023. The reversal of 195015 is 510591.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-195015 is a prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 194982 and 195000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6486 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (39006).

2¹⁹⁵⁰¹⁵ is an apocalyptic number.

195015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195015 is a deficient number, since it is larger than the sum of its proper divisors (117033).

195015 is a wasteful number, since it uses less digits than its factorization.

195015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13009.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 195015 is about 441.6050271453. The cubic root of 195015 is about 57.9903868332.

The spelling of 195015 in words is "one hundred ninety-five thousand, fifteen".