139066039 has 8 divisors (see below), whose sum is σ = 159100928. Its totient is φ = 119073240.

The previous prime is 139066033. The next prime is 139066051. The reversal of 139066039 is 930660931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139066039 - 2⁵ = 139066007 is a prime.

It is a super-3 number, since 3×139066039³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139065989 and 139066007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139066033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3087 + ... + 16960.

It is an arithmetic number, because the mean of its divisors is an integer number (19887616).

Almost surely, 2^139066039 is an apocalyptic number.

139066039 is a deficient number, since it is larger than the sum of its proper divisors (20034889).

139066039 is an equidigital number, since it uses as much as digits as its factorization.

139066039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21045.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 139066039 is about 11792.6264674160. The cubic root of 139066039 is about 518.0921694142.

The spelling of 139066039 in words is "one hundred thirty-nine million, sixty-six thousand, thirty-nine".