138003737 has 2 divisors, whose sum is σ = 138003738. Its totient is φ = 138003736.

The previous prime is 138003713. The next prime is 138003763. The reversal of 138003737 is 737300831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112763161 + 25240576 = 10619^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 138003737 - 2¹⁰ = 138002713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138003037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69001868 + 69001869.

It is an arithmetic number, because the mean of its divisors is an integer number (69001869).

Almost surely, 2^138003737 is an apocalyptic number.

It is an amenable number.

138003737 is a deficient number, since it is larger than the sum of its proper divisors (1).

138003737 is an equidigital number, since it uses as much as digits as its factorization.

138003737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 138003737 is about 11747.4991806767. The cubic root of 138003737 is about 516.7695898091.

The spelling of 138003737 in words is "one hundred thirty-eight million, three thousand, seven hundred thirty-seven".