119997865 has 8 divisors (see below), whose sum is σ = 155074248. Its totient is φ = 88613760.

The previous prime is 119997859. The next prime is 119997887. The reversal of 119997865 is 568799911.

It can be written as a sum of positive squares in 4 ways, for example, as 2752281 + 117245584 = 1659^2 + 10828^2 .

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-119997865 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922996 + ... + 923125.

It is an arithmetic number, because the mean of its divisors is an integer number (19384281).

Almost surely, 2^119997865 is an apocalyptic number.

It is an amenable number.

119997865 is a deficient number, since it is larger than the sum of its proper divisors (35076383).

119997865 is a wasteful number, since it uses less digits than its factorization.

119997865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846139.

The product of its digits is 1224720, while the sum is 55.

The square root of 119997865 is about 10954.3537006982. The cubic root of 119997865 is about 493.2394896472.

The spelling of 119997865 in words is "one hundred nineteen million, nine hundred ninety-seven thousand, eight hundred sixty-five".