1199144 has 8 divisors (see below), whose sum is σ = 2248410. Its totient is φ = 599568.

The previous prime is 1199137. The next prime is 1199167. The reversal of 1199144 is 4419911.

1199144 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 407044 = 890^2 + 638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74939 + ... + 74954.

2^1199144 is an apocalyptic number.

It is an amenable number.

1199144 is a deficient number, since it is larger than the sum of its proper divisors (1049266).

1199144 is a wasteful number, since it uses less digits than its factorization.

1199144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149899 (or 149895 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1199144 is about 1095.0543365514. The cubic root of 1199144 is about 106.2405832485.

The spelling of 1199144 in words is "one million, one hundred ninety-nine thousand, one hundred forty-four".