139070026 has 4 divisors (see below), whose sum is σ = 208605042. Its totient is φ = 69535012.

The previous prime is 139070023. The next prime is 139070027. The reversal of 139070026 is 620070931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71419401 + 67650625 = 8451^2 + 8225^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139069976 and 139070003.

It is not an unprimeable number, because it can be changed into a prime (139070023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34767505 + ... + 34767508.

Almost surely, 2^139070026 is an apocalyptic number.

139070026 is a deficient number, since it is larger than the sum of its proper divisors (69535016).

139070026 is an equidigital number, since it uses as much as digits as its factorization.

139070026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69535015.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 139070026 is about 11792.7955125153. The cubic root of 139070026 is about 518.0971205721.

The spelling of 139070026 in words is "one hundred thirty-nine million, seventy thousand, twenty-six".