2150123639 has 2 divisors, whose sum is σ = 2150123640. Its totient is φ = 2150123638.

The previous prime is 2150123629. The next prime is 2150123707. The reversal of 2150123639 is 9363210512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2150123639 - 2²⁰ = 2149075063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2150123609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075061819 + 1075061820.

It is an arithmetic number, because the mean of its divisors is an integer number (1075061820).

Almost surely, 2^2150123639 is an apocalyptic number.

2150123639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150123639 is an equidigital number, since it uses as much as digits as its factorization.

2150123639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2150123639 is about 46369.4256919363. The cubic root of 2150123639 is about 1290.6876207065.

The spelling of 2150123639 in words is "two billion, one hundred fifty million, one hundred twenty-three thousand, six hundred thirty-nine".