138587003 has 2 divisors, whose sum is σ = 138587004. Its totient is φ = 138587002.

The previous prime is 138586963. The next prime is 138587023. The reversal of 138587003 is 300785831.

138587003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (300785831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138587003 - 2¹² = 138582907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138587023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69293501 + 69293502.

It is an arithmetic number, because the mean of its divisors is an integer number (69293502).

Almost surely, 2^138587003 is an apocalyptic number.

138587003 is a deficient number, since it is larger than the sum of its proper divisors (1).

138587003 is an equidigital number, since it uses as much as digits as its factorization.

138587003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 138587003 is about 11772.2981188891. The cubic root of 138587003 is about 517.4966002873.

It can be divided in two parts, 1385 and 87003, that added together give a palindrome (88388).

The spelling of 138587003 in words is "one hundred thirty-eight million, five hundred eighty-seven thousand, three".