1530900 has 144 divisors (see below), whose sum is σ = 5694080. Its totient is φ = 349920.

The previous prime is 1530871. The next prime is 1530911. The reversal of 1530900 is 90351.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218697 + ... + 218703.

2^1530900 is an apocalyptic number.

1530900 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 1530900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2847040).

1530900 is an abundant number, since it is smaller than the sum of its proper divisors (4163180).

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

1530900 is an equidigital number, since it uses as much as digits as its factorization.

1530900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 1530900 is about 1237.2954376381. The cubic root of 1530900 is about 115.2521248489.

The spelling of 1530900 in words is "one million, five hundred thirty thousand, nine hundred".