1223008139 has 2 divisors, whose sum is σ = 1223008140. Its totient is φ = 1223008138.

The previous prime is 1223008121. The next prime is 1223008183. The reversal of 1223008139 is 9318003221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223008139 - 2²⁴ = 1206230923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223008939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611504069 + 611504070.

It is an arithmetic number, because the mean of its divisors is an integer number (611504070).

Almost surely, 2^1223008139 is an apocalyptic number.

1223008139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223008139 is an equidigital number, since it uses as much as digits as its factorization.

1223008139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1223008139 is about 34971.5332663582. The cubic root of 1223008139 is about 1069.4072295364.

The spelling of 1223008139 in words is "one billion, two hundred twenty-three million, eight thousand, one hundred thirty-nine".