139317026 has 16 divisors (see below), whose sum is σ = 220316544. Its totient is φ = 65940864.

The previous prime is 139317001. The next prime is 139317037. The reversal of 139317026 is 620713931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139316983 and 139317001.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11150 + ... + 20073.

It is an arithmetic number, because the mean of its divisors is an integer number (13769784).

Almost surely, 2^139317026 is an apocalyptic number.

139317026 is a deficient number, since it is larger than the sum of its proper divisors (80999518).

139317026 is a wasteful number, since it uses less digits than its factorization.

139317026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31345.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 139317026 is about 11803.2633623079. The cubic root of 139317026 is about 518.4036671019.

The spelling of 139317026 in words is "one hundred thirty-nine million, three hundred seventeen thousand, twenty-six".