1530245 has 4 divisors (see below), whose sum is σ = 1836300. Its totient is φ = 1224192.

The previous prime is 1530233. The next prime is 1530281. The reversal of 1530245 is 5420351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420351 = 599 ⋅9049.

It can be written as a sum of positive squares in 2 ways, for example, as 410881 + 1119364 = 641^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530245 - 2⁴ = 1530229 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 153020 + ... + 153029.

It is an arithmetic number, because the mean of its divisors is an integer number (459075).

2^1530245 is an apocalyptic number.

It is an amenable number.

1530245 is a deficient number, since it is larger than the sum of its proper divisors (306055).

1530245 is an equidigital number, since it uses as much as digits as its factorization.

1530245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306054.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1530245 is about 1237.0307191012. The cubic root of 1530245 is about 115.2356855189.

Adding to 1530245 its reverse (5420351), we get a palindrome (6950596).

The spelling of 1530245 in words is "one million, five hundred thirty thousand, two hundred forty-five".