1531104 has 48 divisors (see below), whose sum is σ = 4127760. Its totient is φ = 496640.

The previous prime is 1531093. The next prime is 1531111. The reversal of 1531104 is 4011351.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3742 + ... + 4130.

It is an arithmetic number, because the mean of its divisors is an integer number (85995).

2^1531104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1531104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063880).

1531104 is an abundant number, since it is smaller than the sum of its proper divisors (2596656).

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

1531104 is a wasteful number, since it uses less digits than its factorization.

1531104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1531104 is about 1237.3778727616. The cubic root of 1531104 is about 115.2572439268.

Adding to 1531104 its reverse (4011351), we get a palindrome (5542455).

The spelling of 1531104 in words is "one million, five hundred thirty-one thousand, one hundred four".