137818061 has 2 divisors, whose sum is σ = 137818062. Its totient is φ = 137818060.

The previous prime is 137818003. The next prime is 137818067. The reversal of 137818061 is 160818731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92525161 + 45292900 = 9619^2 + 6730^2 .

It is a cyclic number.

It is not a de Polignac number, because 137818061 - 2¹⁰ = 137817037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137818067) 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, 68909030 + 68909031.

It is an arithmetic number, because the mean of its divisors is an integer number (68909031).

Almost surely, 2^137818061 is an apocalyptic number.

It is an amenable number.

137818061 is a deficient number, since it is larger than the sum of its proper divisors (1).

137818061 is an equidigital number, since it uses as much as digits as its factorization.

137818061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 137818061 is about 11739.5937323231. The cubic root of 137818061 is about 516.5377246506.

The spelling of 137818061 in words is "one hundred thirty-seven million, eight hundred eighteen thousand, sixty-one".