2146531073 has 2 divisors, whose sum is σ = 2146531074. Its totient is φ = 2146531072.

The previous prime is 2146531069. The next prime is 2146531087. The reversal of 2146531073 is 3701356412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1824400369 + 322130704 = 42713^2 + 17948^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146531073 - 2² = 2146531069 is a prime.

It is not a weakly prime, because it can be changed into another prime (2146531003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073265536 + 1073265537.

It is an arithmetic number, because the mean of its divisors is an integer number (1073265537).

Almost surely, 2^2146531073 is an apocalyptic number.

It is an amenable number.

2146531073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146531073 is an equidigital number, since it uses as much as digits as its factorization.

2146531073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2146531073 is about 46330.6709750679. The cubic root of 2146531073 is about 1289.9683651077.

Adding to 2146531073 its reverse (3701356412), we get a palindrome (5847887485).

The spelling of 2146531073 in words is "two billion, one hundred forty-six million, five hundred thirty-one thousand, seventy-three".