1538499099 has 16 divisors (see below), whose sum is σ = 2172789792. Its totient is φ = 964981248.

The previous prime is 1538499089. The next prime is 1538499119. The reversal of 1538499099 is 9909948351.

It is not a de Polignac number, because 1538499099 - 2¹² = 1538495003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1538499059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273277 + ... + 278849.

It is an arithmetic number, because the mean of its divisors is an integer number (135799362).

Almost surely, 2^1538499099 is an apocalyptic number.

1538499099 is a deficient number, since it is larger than the sum of its proper divisors (634290693).

1538499099 is a wasteful number, since it uses less digits than its factorization.

1538499099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006.

The product of its (nonzero) digits is 3149280, while the sum is 57.

The square root of 1538499099 is about 39223.7058295108. The cubic root of 1538499099 is about 1154.4250679573.

The spelling of 1538499099 in words is "one billion, five hundred thirty-eight million, four hundred ninety-nine thousand, ninety-nine".