139602647 has 2 divisors, whose sum is σ = 139602648. Its totient is φ = 139602646.

The previous prime is 139602599. The next prime is 139602653. The reversal of 139602647 is 746206931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139602647 - 2²⁶ = 72493783 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139602647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139602667) 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, 69801323 + 69801324.

It is an arithmetic number, because the mean of its divisors is an integer number (69801324).

Almost surely, 2^139602647 is an apocalyptic number.

139602647 is a deficient number, since it is larger than the sum of its proper divisors (1).

139602647 is an equidigital number, since it uses as much as digits as its factorization.

139602647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 139602647 is about 11815.3564059659. The cubic root of 139602647 is about 518.7576939489.

The spelling of 139602647 in words is "one hundred thirty-nine million, six hundred two thousand, six hundred forty-seven".