1159899 has 8 divisors (see below), whose sum is σ = 1665552. Its totient is φ = 713760.

The previous prime is 1159889. The next prime is 1159901. The reversal of 1159899 is 9989511.

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

It is not a de Polignac number, because 1159899 - 2¹¹ = 1157851 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1159899.

It is not an unprimeable number, because it can be changed into a prime (1159889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14832 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (208194).

2^1159899 is an apocalyptic number.

1159899 is a deficient number, since it is larger than the sum of its proper divisors (505653).

1159899 is a wasteful number, since it uses less digits than its factorization.

1159899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29757.

The product of its digits is 29160, while the sum is 42.

The square root of 1159899 is about 1076.9860723333. The cubic root of 1159899 is about 105.0687078649.

The spelling of 1159899 in words is "one million, one hundred fifty-nine thousand, eight hundred ninety-nine".