2031145140 has 24 divisors (see below), whose sum is σ = 5687206560. Its totient is φ = 541638688.

The previous prime is 2031145139. The next prime is 2031145147. The reversal of 2031145140 is 415411302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031145147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16926150 + ... + 16926269.

It is an arithmetic number, because the mean of its divisors is an integer number (236966940).

Almost surely, 2^2031145140 is an apocalyptic number.

2031145140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031145140 is an abundant number, since it is smaller than the sum of its proper divisors (3656061420).

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

2031145140 is a wasteful number, since it uses less digits than its factorization.

2031145140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33852431 (or 33852429 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2031145140 is about 45068.2276110344. The cubic root of 2031145140 is about 1266.4274616012.

Adding to 2031145140 its reverse (415411302), we get a palindrome (2446556442).

The spelling of 2031145140 in words is "two billion, thirty-one million, one hundred forty-five thousand, one hundred forty".