139342337 has 2 divisors, whose sum is σ = 139342338. Its totient is φ = 139342336.

The previous prime is 139342283. The next prime is 139342369. The reversal of 139342337 is 733243931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139334416 + 7921 = 11804^2 + 89^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139342337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 139342297 and 139342306.

It is not a weakly prime, because it can be changed into another prime (136342337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69671168 + 69671169.

It is an arithmetic number, because the mean of its divisors is an integer number (69671169).

Almost surely, 2^139342337 is an apocalyptic number.

It is an amenable number.

139342337 is a deficient number, since it is larger than the sum of its proper divisors (1).

139342337 is an equidigital number, since it uses as much as digits as its factorization.

139342337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 35.

The square root of 139342337 is about 11804.3355170886. The cubic root of 139342337 is about 518.4350595815.

The spelling of 139342337 in words is "one hundred thirty-nine million, three hundred forty-two thousand, three hundred thirty-seven".