146221535639 has 2 divisors, whose sum is σ = 146221535640. Its totient is φ = 146221535638.

The previous prime is 146221535569. The next prime is 146221535653. The reversal of 146221535639 is 936535122641.

146221535639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146221535639 - 2¹⁶ = 146221470103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146221535593 and 146221535602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146221535659) 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, 73110767819 + 73110767820.

It is an arithmetic number, because the mean of its divisors is an integer number (73110767820).

Almost surely, 2^146221535639 is an apocalyptic number.

146221535639 is a deficient number, since it is larger than the sum of its proper divisors (1).

146221535639 is an equidigital number, since it uses as much as digits as its factorization.

146221535639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 47.

The spelling of 146221535639 in words is "one hundred forty-six billion, two hundred twenty-one million, five hundred thirty-five thousand, six hundred thirty-nine".