138297701 has 2 divisors, whose sum is σ = 138297702. Its totient is φ = 138297700.

The previous prime is 138297683. The next prime is 138297721. The reversal of 138297701 is 107792831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128368900 + 9928801 = 11330^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 138297701 - 2¹⁴ = 138281317 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 (138297721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69148850 + 69148851.

It is an arithmetic number, because the mean of its divisors is an integer number (69148851).

Almost surely, 2^138297701 is an apocalyptic number.

It is an amenable number.

138297701 is a deficient number, since it is larger than the sum of its proper divisors (1).

138297701 is an equidigital number, since it uses as much as digits as its factorization.

138297701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 138297701 is about 11760.0042942169. The cubic root of 138297701 is about 517.1362560151.

The spelling of 138297701 in words is "one hundred thirty-eight million, two hundred ninety-seven thousand, seven hundred one".