1530312 has 32 divisors (see below), whose sum is σ = 4372800. Its totient is φ = 437184.

The previous prime is 1530311. The next prime is 1530313. The reversal of 1530312 is 2130351.

It is a happy number.

1530312 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (1530311) and next prime (1530313).

It is a junction number, because it is equal to n+sod(n) for n = 1530291 and 1530300.

It is not an unprimeable number, because it can be changed into a prime (1530311) 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 7 ways as a sum of consecutive naturals, for example, 4387 + ... + 4722.

It is an arithmetic number, because the mean of its divisors is an integer number (136650).

2^1530312 is an apocalyptic number.

1530312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1530312 is an abundant number, since it is smaller than the sum of its proper divisors (2842488).

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

1530312 is a wasteful number, since it uses less digits than its factorization.

1530312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125 (or 9121 counting only the distinct ones).

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

The square root of 1530312 is about 1237.0577997814. The cubic root of 1530312 is about 115.2373673146.

Adding to 1530312 its reverse (2130351), we get a palindrome (3660663).

The spelling of 1530312 in words is "one million, five hundred thirty thousand, three hundred twelve".