1530123 has 16 divisors (see below), whose sum is σ = 2380800. Its totient is φ = 873768.

The previous prime is 1530107. The next prime is 1530131. The reversal of 1530123 is 3210351.

It is a happy number.

It is not a de Polignac number, because 1530123 - 2⁴ = 1530107 is a prime.

1530123 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1530103) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 286 + ... + 1772.

It is an arithmetic number, because the mean of its divisors is an integer number (148800).

2^1530123 is an apocalyptic number.

1530123 is a deficient number, since it is larger than the sum of its proper divisors (850677).

1530123 is an equidigital number, since it uses as much as digits as its factorization.

1530123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1530123 is about 1236.9814064892. The cubic root of 1530123 is about 115.2326230187.

Adding to 1530123 its reverse (3210351), we get a palindrome (4740474).

It can be divided in two parts, 1530 and 123, that added together give a triangular number (1653 = T₅₇).

The spelling of 1530123 in words is "one million, five hundred thirty thousand, one hundred twenty-three".