1204201139 has 2 divisors, whose sum is σ = 1204201140. Its totient is φ = 1204201138.

The previous prime is 1204201127. The next prime is 1204201157. The reversal of 1204201139 is 9311024021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204201139 - 2⁴ = 1204201123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204204139) 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, 602100569 + 602100570.

It is an arithmetic number, because the mean of its divisors is an integer number (602100570).

Almost surely, 2^1204201139 is an apocalyptic number.

1204201139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204201139 is an equidigital number, since it uses as much as digits as its factorization.

1204201139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1204201139 is about 34701.6013895613. The cubic root of 1204201139 is about 1063.8972293539.

The spelling of 1204201139 in words is "one billion, two hundred four million, two hundred one thousand, one hundred thirty-nine".