3145042140 has 96 divisors (see below), whose sum is σ = 8941255680. Its totient is φ = 825866496.

The previous prime is 3145042093. The next prime is 3145042169. The reversal of 3145042140 is 412405413.

It is a self number, because there is not a number n which added to its sum of digits gives 3145042140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2592174 + ... + 2593386.

It is an arithmetic number, because the mean of its divisors is an integer number (93138080).

Almost surely, 2^3145042140 is an apocalyptic number.

3145042140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3145042140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4470627840).

3145042140 is an abundant number, since it is smaller than the sum of its proper divisors (5796213540).

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

3145042140 is a wasteful number, since it uses less digits than its factorization.

3145042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3145042140 is about 56080.6752812410. The cubic root of 3145042140 is about 1465.1277348660.

Adding to 3145042140 its reverse (412405413), we get a palindrome (3557447553).

The spelling of 3145042140 in words is "three billion, one hundred forty-five million, forty-two thousand, one hundred forty".