139000837 has 2 divisors, whose sum is σ = 139000838. Its totient is φ = 139000836.

The previous prime is 139000831. The next prime is 139000843. The reversal of 139000837 is 738000931.

It is a balanced prime because it is at equal distance from previous prime (139000831) and next prime (139000843).

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 18198756 = 10991^2 + 4266^2 .

It is a cyclic number.

It is not a de Polignac number, because 139000837 - 2¹⁹ = 138476549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139000799 and 139000808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139000831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69500418 + 69500419.

It is an arithmetic number, because the mean of its divisors is an integer number (69500419).

Almost surely, 2^139000837 is an apocalyptic number.

It is an amenable number.

139000837 is a deficient number, since it is larger than the sum of its proper divisors (1).

139000837 is an equidigital number, since it uses as much as digits as its factorization.

139000837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 139000837 is about 11789.8616192049. The cubic root of 139000837 is about 518.0111864829.

The spelling of 139000837 in words is "one hundred thirty-nine million, eight hundred thirty-seven", and thus it is an aban number.