139406309702 has 12 divisors (see below), whose sum is σ = 229847593668. Its totient is φ = 63366504300.

The previous prime is 139406309701. The next prime is 139406309711. The reversal of 139406309702 is 207903604931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139406309701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288029324 + ... + 288029807.

It is an arithmetic number, because the mean of its divisors is an integer number (19153966139).

Almost surely, 2^139406309702 is an apocalyptic number.

139406309702 is a deficient number, since it is larger than the sum of its proper divisors (90441283966).

139406309702 is a wasteful number, since it uses less digits than its factorization.

139406309702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576059155 (or 576059144 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 139406309702 in words is "one hundred thirty-nine billion, four hundred six million, three hundred nine thousand, seven hundred two".