2031146461 has 4 divisors (see below), whose sum is σ = 2051256924. Its totient is φ = 2011036000.

The previous prime is 2031146441. The next prime is 2031146471. The reversal of 2031146461 is 1646411302.

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 1654048900 + 377097561 = 40670^2 + 19419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031146461 - 2¹¹ = 2031144413 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 (2031146441) 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, 10055080 + ... + 10055281.

It is an arithmetic number, because the mean of its divisors is an integer number (512814231).

Almost surely, 2^2031146461 is an apocalyptic number.

It is an amenable number.

2031146461 is a deficient number, since it is larger than the sum of its proper divisors (20110463).

2031146461 is a wasteful number, since it uses less digits than its factorization.

2031146461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110462.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2031146461 is about 45068.2422665895. The cubic root of 2031146461 is about 1266.4277361508.

Adding to 2031146461 its reverse (1646411302), we get a palindrome (3677557763).

The spelling of 2031146461 in words is "two billion, thirty-one million, one hundred forty-six thousand, four hundred sixty-one".