2150506081 has 2 divisors, whose sum is σ = 2150506082. Its totient is φ = 2150506080.

The previous prime is 2150506079. The next prime is 2150506093. The reversal of 2150506081 is 1806050512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239673681 + 910832400 = 35209^2 + 30180^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150506081 - 2¹ = 2150506079 is a prime.

It is a super-2 number, since 2×2150506081² = 9249352808835957122, which contains 22 as substring.

Together with 2150506079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2150506031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075253040 + 1075253041.

It is an arithmetic number, because the mean of its divisors is an integer number (1075253041).

Almost surely, 2^2150506081 is an apocalyptic number.

It is an amenable number.

2150506081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150506081 is an equidigital number, since it uses as much as digits as its factorization.

2150506081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 2150506081 is about 46373.5493681474. The cubic root of 2150506081 is about 1290.7641409404.

Adding to 2150506081 its reverse (1806050512), we get a palindrome (3956556593).

The spelling of 2150506081 in words is "two billion, one hundred fifty million, five hundred six thousand, eighty-one".