138703783 has 2 divisors, whose sum is σ = 138703784. Its totient is φ = 138703782.

The previous prime is 138703757. The next prime is 138703793. The reversal of 138703783 is 387307831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138703783 - 2¹³ = 138695591 is a prime.

It is a super-2 number, since 2×138703783² = 38477478837022178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138703753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69351891 + 69351892.

It is an arithmetic number, because the mean of its divisors is an integer number (69351892).

Almost surely, 2^138703783 is an apocalyptic number.

138703783 is a deficient number, since it is larger than the sum of its proper divisors (1).

138703783 is an equidigital number, since it uses as much as digits as its factorization.

138703783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 138703783 is about 11777.2570236027. The cubic root of 138703783 is about 517.6419152278.

It can be divided in two parts, 138 and 703783, that added together give a square (703921 = 839²).

The spelling of 138703783 in words is "one hundred thirty-eight million, seven hundred three thousand, seven hundred eighty-three".