1530505099 has 4 divisors (see below), whose sum is σ = 1530584464. Its totient is φ = 1530425736.

The previous prime is 1530505033. The next prime is 1530505117. The reversal of 1530505099 is 9905050351.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9905050351 = 7 ⋅1415007193.

It is a cyclic number.

It is not a de Polignac number, because 1530505099 - 2¹³ = 1530496907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1530505199) 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, 9874 + ... + 56200.

It is an arithmetic number, because the mean of its divisors is an integer number (382646116).

Almost surely, 2^1530505099 is an apocalyptic number.

1530505099 is a deficient number, since it is larger than the sum of its proper divisors (79365).

1530505099 is an equidigital number, since it uses as much as digits as its factorization.

1530505099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79364.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 1530505099 is about 39121.6704525765. The cubic root of 1530505099 is about 1152.4221410066.

The spelling of 1530505099 in words is "one billion, five hundred thirty million, five hundred five thousand, ninety-nine".