139004726 has 32 divisors (see below), whose sum is σ = 244151040. Its totient is φ = 58125600.

The previous prime is 139004717. The next prime is 139004729. The reversal of 139004726 is 627400931.

It is a junction number, because it is equal to n+sod(n) for n = 139004692 and 139004701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139004729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118121 + ... + 119291.

It is an arithmetic number, because the mean of its divisors is an integer number (7629720).

Almost surely, 2^139004726 is an apocalyptic number.

139004726 is a deficient number, since it is larger than the sum of its proper divisors (105146314).

139004726 is a wasteful number, since it uses less digits than its factorization.

139004726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 139004726 is about 11790.0265478921. The cubic root of 139004726 is about 518.0160174532.

The spelling of 139004726 in words is "one hundred thirty-nine million, four thousand, seven hundred twenty-six".