119998505 has 16 divisors (see below), whose sum is σ = 157405248. Its totient is φ = 87096000.

The previous prime is 119998493. The next prime is 119998531. The reversal of 119998505 is 505899911.

It is not a de Polignac number, because 119998505 - 2⁶ = 119998441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 119998505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29495 + ... + 33315.

It is an arithmetic number, because the mean of its divisors is an integer number (9837828).

Almost surely, 2^119998505 is an apocalyptic number.

It is an amenable number.

119998505 is a deficient number, since it is larger than the sum of its proper divisors (37406743).

119998505 is a wasteful number, since it uses less digits than its factorization.

119998505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408.

The product of its (nonzero) digits is 145800, while the sum is 47.

The square root of 119998505 is about 10954.3829127888. The cubic root of 119998505 is about 493.2403665314.

The spelling of 119998505 in words is "one hundred nineteen million, nine hundred ninety-eight thousand, five hundred five".