138342803 has 2 divisors, whose sum is σ = 138342804. Its totient is φ = 138342802.

The previous prime is 138342797. The next prime is 138342817. The reversal of 138342803 is 308243831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138342803 is a prime.

It is a super-2 number, since 2×138342803² = 38277462283793618, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138342803.

It is not a weakly prime, because it can be changed into another prime (138342403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69171401 + 69171402.

It is an arithmetic number, because the mean of its divisors is an integer number (69171402).

Almost surely, 2^138342803 is an apocalyptic number.

138342803 is a deficient number, since it is larger than the sum of its proper divisors (1).

138342803 is an equidigital number, since it uses as much as digits as its factorization.

138342803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 138342803 is about 11761.9217392397. The cubic root of 138342803 is about 517.1924665046.

The spelling of 138342803 in words is "one hundred thirty-eight million, three hundred forty-two thousand, eight hundred three".