1530001 has 4 divisors (see below), whose sum is σ = 1669104. Its totient is φ = 1390900.

The previous prime is 1529989. The next prime is 1530019. The reversal of 1530001 is 1000351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1530001 - 2¹³ = 1521809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1530001.

It is not an unprimeable number, because it can be changed into a prime (1530071) 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, 69535 + ... + 69556.

It is an arithmetic number, because the mean of its divisors is an integer number (417276).

2^1530001 is an apocalyptic number.

1530001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1530001 is a deficient number, since it is larger than the sum of its proper divisors (139103).

1530001 is a wasteful number, since it uses less digits than its factorization.

1530001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139102.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 1530001 is about 1236.9320919113. The cubic root of 1530001 is about 115.2295603556.

Adding to 1530001 its reverse (1000351), we get a palindrome (2530352).

The spelling of 1530001 in words is "one million, five hundred thirty thousand, one".