1530052724209 has 3 divisors (see below), whose sum is σ = 1530053961163. Its totient is φ = 1530051487256.

The previous prime is 1530052724203. The next prime is 1530052724219. The reversal of 1530052724209 is 9024272500351.

The square root of 1530052724209 is 1236953.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 235627722225 + 1294425001984 = 485415^2 + 1137728^2 .

It is not a de Polignac number, because 1530052724209 - 2²⁷ = 1529918506481 is a prime.

It is a super-2 number, since 2×1530052724209² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1530052724203) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 618477 + ... + 1855429.

Almost surely, 2^{1530052724209} is an apocalyptic number.

1530052724209 is the 1236953-rd square number.

1530052724209 is the 618477-th centered octagonal number.

It is an amenable number.

1530052724209 is a deficient number, since it is larger than the sum of its proper divisors (1236954).

1530052724209 is an frugal number, since it uses more digits than its factorization.

1530052724209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473906 (or 1236953 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 1530052724209 in words is "one trillion, five hundred thirty billion, fifty-two million, seven hundred twenty-four thousand, two hundred nine".