1530552121 has 8 divisors (see below), whose sum is σ = 1770277824. Its totient is φ = 1296095280.

The previous prime is 1530552113. The next prime is 1530552137. The reversal of 1530552121 is 1212550351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1530552121 - 2³ = 1530552113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530552151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1316590 + ... + 1317751.

It is an arithmetic number, because the mean of its divisors is an integer number (221284728).

Almost surely, 2^1530552121 is an apocalyptic number.

It is an amenable number.

1530552121 is a deficient number, since it is larger than the sum of its proper divisors (239725703).

1530552121 is an equidigital number, since it uses as much as digits as its factorization.

1530552121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634431.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1530552121 is about 39122.2714192313. The cubic root of 1530552121 is about 1152.4339429141.

The spelling of 1530552121 in words is "one billion, five hundred thirty million, five hundred fifty-two thousand, one hundred twenty-one".