138587153 has 2 divisors, whose sum is σ = 138587154. Its totient is φ = 138587152.

The previous prime is 138587147. The next prime is 138587171. The reversal of 138587153 is 351785831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88134544 + 50452609 = 9388^2 + 7103^2 .

It is an emirp because it is prime and its reverse (351785831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138587153 - 2¹⁸ = 138325009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138587153.

It is not a weakly prime, because it can be changed into another prime (138587173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69293576 + 69293577.

It is an arithmetic number, because the mean of its divisors is an integer number (69293577).

Almost surely, 2^138587153 is an apocalyptic number.

It is an amenable number.

138587153 is a deficient number, since it is larger than the sum of its proper divisors (1).

138587153 is an equidigital number, since it uses as much as digits as its factorization.

138587153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 138587153 is about 11772.3044897760. The cubic root of 138587153 is about 517.4967869918.

The spelling of 138587153 in words is "one hundred thirty-eight million, five hundred eighty-seven thousand, one hundred fifty-three".