1201004039 has 2 divisors, whose sum is σ = 1201004040. Its totient is φ = 1201004038.

The previous prime is 1201004027. The next prime is 1201004069. The reversal of 1201004039 is 9304001021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201004039 - 2⁴ = 1201004023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201004039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201004069) 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, 600502019 + 600502020.

It is an arithmetic number, because the mean of its divisors is an integer number (600502020).

Almost surely, 2^1201004039 is an apocalyptic number.

1201004039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201004039 is an equidigital number, since it uses as much as digits as its factorization.

1201004039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1201004039 is about 34655.5051759457. The cubic root of 1201004039 is about 1062.9548617418.

The spelling of 1201004039 in words is "one billion, two hundred one million, four thousand, thirty-nine".