3145138700 has 72 divisors (see below), whose sum is σ = 7627105584. Its totient is φ = 1115776000.

The previous prime is 3145138699. The next prime is 3145138709. The reversal of 3145138700 is 78315413.

It is a super-3 number, since 3×3145138700³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3145138709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10232 + ... + 79968.

It is an arithmetic number, because the mean of its divisors is an integer number (105932022).

Almost surely, 2^3145138700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3145138700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3813552792).

3145138700 is an abundant number, since it is smaller than the sum of its proper divisors (4481966884).

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

3145138700 is a wasteful number, since it uses less digits than its factorization.

3145138700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69803 (or 69796 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 3145138700 is about 56081.5361772482. The cubic root of 3145138700 is about 1465.1427289720.

The spelling of 3145138700 in words is "three billion, one hundred forty-five million, one hundred thirty-eight thousand, seven hundred".