1009530138 has 16 divisors (see below), whose sum is σ = 2049196320. Its totient is φ = 331487376.

The previous prime is 1009530131. The next prime is 1009530139. The reversal of 1009530138 is 8310359001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1009530131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255233 + ... + 1256036.

It is an arithmetic number, because the mean of its divisors is an integer number (128074770).

Almost surely, 2^1009530138 is an apocalyptic number.

1009530138 is an abundant number, since it is smaller than the sum of its proper divisors (1039666182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1009530138 is a wasteful number, since it uses less digits than its factorization.

1009530138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511341.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1009530138 is about 31773.1040032289. The cubic root of 1009530138 is about 1003.1666742559.

Adding to 1009530138 its reverse (8310359001), we get a palindrome (9319889139).

The spelling of 1009530138 in words is "one billion, nine million, five hundred thirty thousand, one hundred thirty-eight".