139958039 has 4 divisors (see below), whose sum is σ = 150724056. Its totient is φ = 129192024.

The previous prime is 139958017. The next prime is 139958041. The reversal of 139958039 is 930859931.

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

It is not a de Polignac number, because 139958039 - 2¹⁶ = 139892503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139957984 and 139958002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139958839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5382989 + ... + 5383014.

It is an arithmetic number, because the mean of its divisors is an integer number (37681014).

Almost surely, 2^139958039 is an apocalyptic number.

139958039 is a deficient number, since it is larger than the sum of its proper divisors (10766017).

139958039 is a wasteful number, since it uses less digits than its factorization.

139958039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10766016.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 139958039 is about 11830.3862574305. The cubic root of 139958039 is about 519.1975282764.

The spelling of 139958039 in words is "one hundred thirty-nine million, nine hundred fifty-eight thousand, thirty-nine".