173542139 has 8 divisors (see below), whose sum is σ = 175608912. Its totient is φ = 171482400.

The previous prime is 173542093. The next prime is 173542141. The reversal of 173542139 is 931245371.

173542139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 173542139 - 2⁸ = 173541883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173542099 and 173542108.

It is not an unprimeable number, because it can be changed into a prime (173542169) 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, 60512 + ... + 63314.

It is an arithmetic number, because the mean of its divisors is an integer number (21951114).

Almost surely, 2^173542139 is an apocalyptic number.

173542139 is a deficient number, since it is larger than the sum of its proper divisors (2066773).

173542139 is a wasteful number, since it uses less digits than its factorization.

173542139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517.

The product of its digits is 22680, while the sum is 35.

The square root of 173542139 is about 13173.5393497723. The cubic root of 173542139 is about 557.7869064238.

The spelling of 173542139 in words is "one hundred seventy-three million, five hundred forty-two thousand, one hundred thirty-nine".