138314747 has 2 divisors, whose sum is σ = 138314748. Its totient is φ = 138314746.

The previous prime is 138314731. The next prime is 138314773. The reversal of 138314747 is 747413831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138314747 - 2⁴ = 138314731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138314747.

It is not a weakly prime, because it can be changed into another prime (138314707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69157373 + 69157374.

It is an arithmetic number, because the mean of its divisors is an integer number (69157374).

Almost surely, 2^138314747 is an apocalyptic number.

138314747 is a deficient number, since it is larger than the sum of its proper divisors (1).

138314747 is an equidigital number, since it uses as much as digits as its factorization.

138314747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 138314747 is about 11760.7290165193. The cubic root of 138314747 is about 517.1575018310.

The spelling of 138314747 in words is "one hundred thirty-eight million, three hundred fourteen thousand, seven hundred forty-seven".