137439756229 has 2 divisors, whose sum is σ = 137439756230. Its totient is φ = 137439756228.

The previous prime is 137439756169. The next prime is 137439756263. The reversal of 137439756229 is 922657934731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119484292225 + 17955464004 = 345665^2 + 133998^2 .

It is a cyclic number.

It is not a de Polignac number, because 137439756229 - 2¹⁷ = 137439625157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137439756269) 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, 68719878114 + 68719878115.

It is an arithmetic number, because the mean of its divisors is an integer number (68719878115).

Almost surely, 2^137439756229 is an apocalyptic number.

It is an amenable number.

137439756229 is a deficient number, since it is larger than the sum of its proper divisors (1).

137439756229 is an equidigital number, since it uses as much as digits as its factorization.

137439756229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 58.

The spelling of 137439756229 in words is "one hundred thirty-seven billion, four hundred thirty-nine million, seven hundred fifty-six thousand, two hundred twenty-nine".