138402683 has 2 divisors, whose sum is σ = 138402684. Its totient is φ = 138402682.

The previous prime is 138402659. The next prime is 138402689. The reversal of 138402683 is 386204831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138402683 - 2⁸ = 138402427 is a prime.

It is not a weakly prime, because it can be changed into another prime (138402689) 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, 69201341 + 69201342.

It is an arithmetic number, because the mean of its divisors is an integer number (69201342).

Almost surely, 2^138402683 is an apocalyptic number.

138402683 is a deficient number, since it is larger than the sum of its proper divisors (1).

138402683 is an equidigital number, since it uses as much as digits as its factorization.

138402683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 138402683 is about 11764.4669662505. The cubic root of 138402683 is about 517.2670758977.

The spelling of 138402683 in words is "one hundred thirty-eight million, four hundred two thousand, six hundred eighty-three".