22145320139 has 2 divisors, whose sum is σ = 22145320140. Its totient is φ = 22145320138.

The previous prime is 22145320123. The next prime is 22145320213. The reversal of 22145320139 is 93102354122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22145320139 - 2⁴ = 22145320123 is a prime.

It is not a weakly prime, because it can be changed into another prime (22145320039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072660069 + 11072660070.

It is an arithmetic number, because the mean of its divisors is an integer number (11072660070).

Almost surely, 2^22145320139 is an apocalyptic number.

22145320139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22145320139 is an equidigital number, since it uses as much as digits as its factorization.

22145320139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 22145320139 in words is "twenty-two billion, one hundred forty-five million, three hundred twenty thousand, one hundred thirty-nine".