1530047 has 4 divisors (see below), whose sum is σ = 1556040. Its totient is φ = 1504056.

The previous prime is 1530037. The next prime is 1530071. The reversal of 1530047 is 7400351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1530047 - 2⁸ = 1529791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12908 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (389010).

2^1530047 is an apocalyptic number.

1530047 is a deficient number, since it is larger than the sum of its proper divisors (25993).

1530047 is an equidigital number, since it uses as much as digits as its factorization.

1530047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25992.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1530047 is about 1236.9506861634. The cubic root of 1530047 is about 115.2307151493.

Adding to 1530047 its reverse (7400351), we get a palindrome (8930398).

The spelling of 1530047 in words is "one million, five hundred thirty thousand, forty-seven".