1042204139 has 2 divisors, whose sum is σ = 1042204140. Its totient is φ = 1042204138.

The previous prime is 1042204127. The next prime is 1042204147. The reversal of 1042204139 is 9314022401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042204139 - 2²⁴ = 1025426923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042204109) 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, 521102069 + 521102070.

It is an arithmetic number, because the mean of its divisors is an integer number (521102070).

Almost surely, 2^1042204139 is an apocalyptic number.

1042204139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042204139 is an equidigital number, since it uses as much as digits as its factorization.

1042204139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1042204139 is about 32283.1866301950. The cubic root of 1042204139 is about 1013.8746501005.

The spelling of 1042204139 in words is "one billion, forty-two million, two hundred four thousand, one hundred thirty-nine".