139939603 has 2 divisors, whose sum is σ = 139939604. Its totient is φ = 139939602.

The previous prime is 139939589. The next prime is 139939627. The reversal of 139939603 is 306939931.

139939603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139939603 - 2¹³ = 139931411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139939603.

It is not a weakly prime, because it can be changed into another prime (139939003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69969801 + 69969802.

It is an arithmetic number, because the mean of its divisors is an integer number (69969802).

Almost surely, 2^139939603 is an apocalyptic number.

139939603 is a deficient number, since it is larger than the sum of its proper divisors (1).

139939603 is an equidigital number, since it uses as much as digits as its factorization.

139939603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 43.

The square root of 139939603 is about 11829.6070518002. The cubic root of 139939603 is about 519.1747301434.

The spelling of 139939603 in words is "one hundred thirty-nine million, nine hundred thirty-nine thousand, six hundred three".