137382565909 has 2 divisors, whose sum is σ = 137382565910. Its totient is φ = 137382565908.

The previous prime is 137382565777. The next prime is 137382565913. The reversal of 137382565909 is 909565283731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130865233009 + 6517332900 = 361753^2 + 80730^2 .

It is a cyclic number.

It is not a de Polignac number, because 137382565909 - 2³¹ = 135235082261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137386565909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68691282954 + 68691282955.

It is an arithmetic number, because the mean of its divisors is an integer number (68691282955).

Almost surely, 2^137382565909 is an apocalyptic number.

It is an amenable number.

137382565909 is a deficient number, since it is larger than the sum of its proper divisors (1).

137382565909 is an equidigital number, since it uses as much as digits as its factorization.

137382565909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 137382565909 in words is "one hundred thirty-seven billion, three hundred eighty-two million, five hundred sixty-five thousand, nine hundred nine".