138127597 has 2 divisors, whose sum is σ = 138127598. Its totient is φ = 138127596.

The previous prime is 138127573. The next prime is 138127621. The reversal of 138127597 is 795721831.

It is a balanced prime because it is at equal distance from previous prime (138127573) and next prime (138127621).

It can be written as a sum of positive squares in only one way, i.e., 136562596 + 1565001 = 11686^2 + 1251^2 .

It is a cyclic number.

It is not a de Polignac number, because 138127597 - 2²³ = 129738989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138127547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69063798 + 69063799.

It is an arithmetic number, because the mean of its divisors is an integer number (69063799).

Almost surely, 2^138127597 is an apocalyptic number.

It is an amenable number.

138127597 is a deficient number, since it is larger than the sum of its proper divisors (1).

138127597 is an equidigital number, since it uses as much as digits as its factorization.

138127597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 43.

The square root of 138127597 is about 11752.7697586569. The cubic root of 138127597 is about 516.9241458698.

The spelling of 138127597 in words is "one hundred thirty-eight million, one hundred twenty-seven thousand, five hundred ninety-seven".