137756317 has 2 divisors, whose sum is σ = 137756318. Its totient is φ = 137756316.

The previous prime is 137756303. The next prime is 137756341. The reversal of 137756317 is 713657731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101828281 + 35928036 = 10091^2 + 5994^2 .

It is a cyclic number.

It is not a de Polignac number, because 137756317 - 2⁷ = 137756189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137756317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137756417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68878158 + 68878159.

It is an arithmetic number, because the mean of its divisors is an integer number (68878159).

Almost surely, 2^137756317 is an apocalyptic number.

It is an amenable number.

137756317 is a deficient number, since it is larger than the sum of its proper divisors (1).

137756317 is an equidigital number, since it uses as much as digits as its factorization.

137756317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92610, while the sum is 40.

The square root of 137756317 is about 11736.9637044680. The cubic root of 137756317 is about 516.4605749431.

The spelling of 137756317 in words is "one hundred thirty-seven million, seven hundred fifty-six thousand, three hundred seventeen".