2031915485 has 4 divisors (see below), whose sum is σ = 2438298588. Its totient is φ = 1625532384.

The previous prime is 2031915481. The next prime is 2031915503. The reversal of 2031915485 is 5845191302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375506884 + 1656408601 = 19378^2 + 40699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031915485 - 2² = 2031915481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031915481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203191544 + ... + 203191553.

It is an arithmetic number, because the mean of its divisors is an integer number (609574647).

Almost surely, 2^2031915485 is an apocalyptic number.

It is an amenable number.

2031915485 is a deficient number, since it is larger than the sum of its proper divisors (406383103).

2031915485 is an equidigital number, since it uses as much as digits as its factorization.

2031915485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406383102.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 2031915485 is about 45076.7732318985. The cubic root of 2031915485 is about 1266.5875458043.

The spelling of 2031915485 in words is "two billion, thirty-one million, nine hundred fifteen thousand, four hundred eighty-five".