1145199 has 8 divisors (see below), whose sum is σ = 1665792. Its totient is φ = 694040.

The previous prime is 1145191. The next prime is 1145203. The reversal of 1145199 is 9915411.

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 1145199 - 2³ = 1145191 is a prime.

It is a super-2 number, since 2×1145199² = 2622961499202, which contains 22 as substring.

1145199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145191) by changing a digit.

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, 17319 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (208224).

2^1145199 is an apocalyptic number.

1145199 is a deficient number, since it is larger than the sum of its proper divisors (520593).

1145199 is a wasteful number, since it uses less digits than its factorization.

1145199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34717.

The product of its digits is 1620, while the sum is 30.

The square root of 1145199 is about 1070.1397105051. The cubic root of 1145199 is about 104.6229560857.

The spelling of 1145199 in words is "one million, one hundred forty-five thousand, one hundred ninety-nine".