2031144145 has 16 divisors (see below), whose sum is σ = 2585048832. Its totient is φ = 1528781760.

The previous prime is 2031144133. The next prime is 2031144163. The reversal of 2031144145 is 5414411302.

It is not a de Polignac number, because 2031144145 - 2²⁷ = 1896926417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137757 + ... + 151786.

It is an arithmetic number, because the mean of its divisors is an integer number (161565552).

Almost surely, 2^2031144145 is an apocalyptic number.

It is an amenable number.

2031144145 is a deficient number, since it is larger than the sum of its proper divisors (553904687).

2031144145 is a wasteful number, since it uses less digits than its factorization.

2031144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289632.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2031144145 is about 45068.2165722142. The cubic root of 2031144145 is about 1266.4272548056.

Adding to 2031144145 its reverse (5414411302), we get a palindrome (7445555447).

The spelling of 2031144145 in words is "two billion, thirty-one million, one hundred forty-four thousand, one hundred forty-five".