1237048139 has 2 divisors, whose sum is σ = 1237048140. Its totient is φ = 1237048138.

The previous prime is 1237048009. The next prime is 1237048207. The reversal of 1237048139 is 9318407321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1237048139 - 2⁸ = 1237047883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1237038139) 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, 618524069 + 618524070.

It is an arithmetic number, because the mean of its divisors is an integer number (618524070).

Almost surely, 2^1237048139 is an apocalyptic number.

1237048139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1237048139 is an equidigital number, since it uses as much as digits as its factorization.

1237048139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1237048139 is about 35171.6951397000. The cubic root of 1237048139 is about 1073.4838953195.

The spelling of 1237048139 in words is "one billion, two hundred thirty-seven million, forty-eight thousand, one hundred thirty-nine".