139444703 has 2 divisors, whose sum is σ = 139444704. Its totient is φ = 139444702.

The previous prime is 139444651. The next prime is 139444709. The reversal of 139444703 is 307444931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139444703 - 2¹⁸ = 139182559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139444709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69722351 + 69722352.

It is an arithmetic number, because the mean of its divisors is an integer number (69722352).

Almost surely, 2^139444703 is an apocalyptic number.

139444703 is a deficient number, since it is larger than the sum of its proper divisors (1).

139444703 is an equidigital number, since it uses as much as digits as its factorization.

139444703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 139444703 is about 11808.6706703168. The cubic root of 139444703 is about 518.5619823197.

The spelling of 139444703 in words is "one hundred thirty-nine million, four hundred forty-four thousand, seven hundred three".