139550173 has 8 divisors (see below), whose sum is σ = 159719040. Its totient is φ = 119439600.

The previous prime is 139550171. The next prime is 139550207. The reversal of 139550173 is 371055931.

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

It is not a de Polignac number, because 139550173 - 2¹ = 139550171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139550171) 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, 9313 + ... + 19126.

It is an arithmetic number, because the mean of its divisors is an integer number (19964880).

Almost surely, 2^139550173 is an apocalyptic number.

It is an amenable number.

139550173 is a deficient number, since it is larger than the sum of its proper divisors (20168867).

139550173 is an equidigital number, since it uses as much as digits as its factorization.

139550173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29147.

The product of its (nonzero) digits is 14175, while the sum is 34.

The square root of 139550173 is about 11813.1356125290. The cubic root of 139550173 is about 518.6926887283.

The spelling of 139550173 in words is "one hundred thirty-nine million, five hundred fifty thousand, one hundred seventy-three".