138411803 has 2 divisors, whose sum is σ = 138411804. Its totient is φ = 138411802.

The previous prime is 138411799. The next prime is 138411853. The reversal of 138411803 is 308114831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138411803 - 2² = 138411799 is a prime.

It is not a weakly prime, because it can be changed into another prime (138411853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69205901 + 69205902.

It is an arithmetic number, because the mean of its divisors is an integer number (69205902).

Almost surely, 2^138411803 is an apocalyptic number.

138411803 is a deficient number, since it is larger than the sum of its proper divisors (1).

138411803 is an equidigital number, since it uses as much as digits as its factorization.

138411803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 138411803 is about 11764.8545677369. The cubic root of 138411803 is about 517.2784373636.

The spelling of 138411803 in words is "one hundred thirty-eight million, four hundred eleven thousand, eight hundred three".