139302739 has 2 divisors, whose sum is σ = 139302740. Its totient is φ = 139302738.

The previous prime is 139302727. The next prime is 139302749. The reversal of 139302739 is 937203931.

139302739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139302739 - 2²¹ = 137205587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139302698 and 139302707.

It is not a weakly prime, because it can be changed into another prime (139302749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69651369 + 69651370.

It is an arithmetic number, because the mean of its divisors is an integer number (69651370).

Almost surely, 2^139302739 is an apocalyptic number.

139302739 is a deficient number, since it is larger than the sum of its proper divisors (1).

139302739 is an equidigital number, since it uses as much as digits as its factorization.

139302739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 139302739 is about 11802.6581328106. The cubic root of 139302739 is about 518.3859456824.

It can be divided in two parts, 139302 and 739, that added together give a palindrome (140041).

The spelling of 139302739 in words is "one hundred thirty-nine million, three hundred two thousand, seven hundred thirty-nine".