137680559 has 2 divisors, whose sum is σ = 137680560. Its totient is φ = 137680558.

The previous prime is 137680549. The next prime is 137680561. The reversal of 137680559 is 955086731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137680559 is a prime.

Together with 137680561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137680519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68840279 + 68840280.

It is an arithmetic number, because the mean of its divisors is an integer number (68840280).

Almost surely, 2^137680559 is an apocalyptic number.

137680559 is a deficient number, since it is larger than the sum of its proper divisors (1).

137680559 is an equidigital number, since it uses as much as digits as its factorization.

137680559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 137680559 is about 11733.7359353277. The cubic root of 137680559 is about 516.3658831094.

The spelling of 137680559 in words is "one hundred thirty-seven million, six hundred eighty thousand, five hundred fifty-nine".