1009485138 has 8 divisors (see below), whose sum is σ = 2018970288. Its totient is φ = 336495044.

The previous prime is 1009485133. The next prime is 1009485151. The reversal of 1009485138 is 8315849001.

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

1009485138 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1009485096 and 1009485105.

It is not an unprimeable number, because it can be changed into a prime (1009485131) 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, 84123756 + ... + 84123767.

It is an arithmetic number, because the mean of its divisors is an integer number (252371286).

Almost surely, 2^1009485138 is an apocalyptic number.

1009485138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1009485138 is a wasteful number, since it uses less digits than its factorization.

1009485138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168247528.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1009485138 is about 31772.3958492274. The cubic root of 1009485138 is about 1003.1517685853.

The spelling of 1009485138 in words is "one billion, nine million, four hundred eighty-five thousand, one hundred thirty-eight".