137731339 has 2 divisors, whose sum is σ = 137731340. Its totient is φ = 137731338.

The previous prime is 137731309. The next prime is 137731343. The reversal of 137731339 is 933137731.

It is a strong prime.

It is an emirp because it is prime and its reverse (933137731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137731339 - 2⁷ = 137731211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137731298 and 137731307.

It is not a weakly prime, because it can be changed into another prime (137731309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68865669 + 68865670.

It is an arithmetic number, because the mean of its divisors is an integer number (68865670).

Almost surely, 2^137731339 is an apocalyptic number.

137731339 is a deficient number, since it is larger than the sum of its proper divisors (1).

137731339 is an equidigital number, since it uses as much as digits as its factorization.

137731339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35721, while the sum is 37.

The square root of 137731339 is about 11735.8995820516. The cubic root of 137731339 is about 516.4293581484.

The spelling of 137731339 in words is "one hundred thirty-seven million, seven hundred thirty-one thousand, three hundred thirty-nine".