1300140138 has 64 divisors (see below), whose sum is σ = 2912360832. Its totient is φ = 383585280.

The previous prime is 1300140133. The next prime is 1300140139. The reversal of 1300140138 is 8310410031.

It is not an unprimeable number, because it can be changed into a prime (1300140133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477870 + ... + 480582.

It is an arithmetic number, because the mean of its divisors is an integer number (45505638).

Almost surely, 2^1300140138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1300140138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456180416).

1300140138 is an abundant number, since it is smaller than the sum of its proper divisors (1612220694).

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

1300140138 is a wasteful number, since it uses less digits than its factorization.

1300140138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1300140138 is about 36057.4560666723. The cubic root of 1300140138 is about 1091.4320984766.

Adding to 1300140138 its reverse (8310410031), we get a palindrome (9610550169).

The spelling of 1300140138 in words is "one billion, three hundred million, one hundred forty thousand, one hundred thirty-eight".