5001000138 has 12 divisors (see below), whose sum is σ = 10835500338. Its totient is φ = 1667000040.

The previous prime is 5001000119. The next prime is 5001000167. The reversal of 5001000138 is 8310001005.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4999479849 + 1520289 = 70707^2 + 1233^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 277833341 = 5001000138 / (5 + 0 + 0 + 1 + 0 + 0 + 0 + 1 + 3 + 8).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5001000138.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138916653 + ... + 138916688.

Almost surely, 2^5001000138 is an apocalyptic number.

5001000138 is an abundant number, since it is smaller than the sum of its proper divisors (5834500200).

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

5001000138 is a wasteful number, since it uses less digits than its factorization.

5001000138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277833349 (or 277833346 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 5001000138 is about 70717.7498086584. The cubic root of 5001000138 is about 1710.0899532038.

The spelling of 5001000138 in words is "five billion, one million, one hundred thirty-eight", and thus it is an aban number.