1199120 has 40 divisors (see below), whose sum is σ = 3005016. Its totient is φ = 442368.

The previous prime is 1199117. The next prime is 1199123. The reversal of 1199120 is 219911.

It is an interprime number because it is at equal distance from previous prime (1199117) and next prime (1199123).

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 1106704 = 304^2 + 1052^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1199123) 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, 464 + ... + 1616.

2^1199120 is an apocalyptic number.

1199120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1199120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502508).

1199120 is an abundant number, since it is smaller than the sum of its proper divisors (1805896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1199120 is a wasteful number, since it uses less digits than its factorization.

1199120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1199120 is about 1095.0433781362. The cubic root of 1199120 is about 106.2398744676.

The spelling of 1199120 in words is "one million, one hundred ninety-nine thousand, one hundred twenty".