1968515 has 8 divisors (see below), whose sum is σ = 2501280. Its totient is φ = 1482112.

The previous prime is 1968487. The next prime is 1968521. The reversal of 1968515 is 5158691.

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

It is a cyclic number.

It is not a de Polignac number, because 1968515 - 2¹² = 1964419 is a prime.

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, 11495 + ... + 11664.

It is an arithmetic number, because the mean of its divisors is an integer number (312660).

2^1968515 is an apocalyptic number.

1968515 is a deficient number, since it is larger than the sum of its proper divisors (532765).

1968515 is a wasteful number, since it uses less digits than its factorization.

1968515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23181.

The product of its digits is 10800, while the sum is 35.

The square root of 1968515 is about 1403.0377756853. The cubic root of 1968515 is about 125.3274614031.

The spelling of 1968515 in words is "one million, nine hundred sixty-eight thousand, five hundred fifteen".