138053737 has 2 divisors, whose sum is σ = 138053738. Its totient is φ = 138053736.

The previous prime is 138053653. The next prime is 138053789. The reversal of 138053737 is 737350831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 58201641 = 8936^2 + 7629^2 .

It is a cyclic number.

It is not a de Polignac number, because 138053737 - 2⁷ = 138053609 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 138053696 and 138053705.

It is not a weakly prime, because it can be changed into another prime (138053537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69026868 + 69026869.

It is an arithmetic number, because the mean of its divisors is an integer number (69026869).

Almost surely, 2^138053737 is an apocalyptic number.

It is an amenable number.

138053737 is a deficient number, since it is larger than the sum of its proper divisors (1).

138053737 is an equidigital number, since it uses as much as digits as its factorization.

138053737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 138053737 is about 11749.6271004658. The cubic root of 138053737 is about 516.8319923695.

The spelling of 138053737 in words is "one hundred thirty-eight million, fifty-three thousand, seven hundred thirty-seven".