1603120 has 40 divisors (see below), whose sum is σ = 3861360. Its totient is φ = 618240.

The previous prime is 1603111. The next prime is 1603139. The reversal of 1603120 is 213061.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1603120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (96534).

2^1603120 is an apocalyptic number.

1603120 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 1603120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930680).

1603120 is an abundant number, since it is smaller than the sum of its proper divisors (2258240).

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

1603120 is a wasteful number, since it uses less digits than its factorization.

1603120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1603120 is about 1266.1437517123. The cubic root of 1603120 is about 117.0366846273.

Adding to 1603120 its reverse (213061), we get a palindrome (1816181).

The spelling of 1603120 in words is "one million, six hundred three thousand, one hundred twenty".