1530213101 has 4 divisors (see below), whose sum is σ = 1582979100. Its totient is φ = 1477447104.

The previous prime is 1530213071. The next prime is 1530213109. The reversal of 1530213101 is 1013120351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1013120351 = 173 ⋅5856187.

It can be written as a sum of positive squares in 2 ways, for example, as 518655076 + 1011558025 = 22774^2 + 31805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530213101 - 2¹⁰ = 1530212077 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 1530213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530213109) 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, 26382956 + ... + 26383013.

It is an arithmetic number, because the mean of its divisors is an integer number (395744775).

Almost surely, 2^1530213101 is an apocalyptic number.

It is an amenable number.

1530213101 is a deficient number, since it is larger than the sum of its proper divisors (52765999).

1530213101 is an equidigital number, since it uses as much as digits as its factorization.

1530213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52765998.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1530213101 is about 39117.9383531392. The cubic root of 1530213101 is about 1152.3488479125.

Adding to 1530213101 its reverse (1013120351), we get a palindrome (2543333452).

The spelling of 1530213101 in words is "one billion, five hundred thirty million, two hundred thirteen thousand, one hundred one".