1099129 has 8 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 1050000.

The previous prime is 1099121. The next prime is 1099139. The reversal of 1099129 is 9219901.

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 1099129 - 2³ = 1099121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1099129.

It is not an unprimeable number, because it can be changed into a prime (1099121) 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, 4254 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1099129 is an apocalyptic number.

It is an amenable number.

1099129 is a deficient number, since it is larger than the sum of its proper divisors (49991).

1099129 is a wasteful number, since it uses less digits than its factorization.

1099129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1099129 is about 1048.3935329827. The cubic root of 1099129 is about 103.2007584124.

The spelling of 1099129 in words is "one million, ninety-nine thousand, one hundred twenty-nine".