1530287 has 6 divisors (see below), whose sum is σ = 1682184. Its totient is φ = 1391060.

The previous prime is 1530281. The next prime is 1530293. The reversal of 1530287 is 7820351.

It is an interprime number because it is at equal distance from previous prime (1530281) and next prime (1530293).

It is not a de Polignac number, because 1530287 - 2¹⁰ = 1529263 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 (1530281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6203 + ... + 6444.

It is an arithmetic number, because the mean of its divisors is an integer number (280364).

2^1530287 is an apocalyptic number.

1530287 is a deficient number, since it is larger than the sum of its proper divisors (151897).

1530287 is a wasteful number, since it uses less digits than its factorization.

1530287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12669 (or 12658 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1530287 is about 1237.0476951193. The cubic root of 1530287 is about 115.2367397847.

Subtracting 1530287 from its reverse (7820351), we obtain a square (6290064 = 2508²).

The spelling of 1530287 in words is "one million, five hundred thirty thousand, two hundred eighty-seven".