138264337 has 2 divisors, whose sum is σ = 138264338. Its totient is φ = 138264336.

The previous prime is 138264331. The next prime is 138264391. The reversal of 138264337 is 733462831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126697536 + 11566801 = 11256^2 + 3401^2 .

It is a cyclic number.

It is not a de Polignac number, because 138264337 - 2⁷ = 138264209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138264296 and 138264305.

It is not a weakly prime, because it can be changed into another prime (138264331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69132168 + 69132169.

It is an arithmetic number, because the mean of its divisors is an integer number (69132169).

Almost surely, 2^138264337 is an apocalyptic number.

It is an amenable number.

138264337 is a deficient number, since it is larger than the sum of its proper divisors (1).

138264337 is an equidigital number, since it uses as much as digits as its factorization.

138264337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 138264337 is about 11758.5856717549. The cubic root of 138264337 is about 517.0946666959.

It can be divided in two parts, 138264 and 337, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 138264337 in words is "one hundred thirty-eight million, two hundred sixty-four thousand, three hundred thirty-seven".