173493139 has 4 divisors (see below), whose sum is σ = 173586024. Its totient is φ = 173400256.

The previous prime is 173493137. The next prime is 173493169. The reversal of 173493139 is 931394371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931394371 = 73 ⋅12758827.

It is a cyclic number.

It is not a de Polignac number, because 173493139 - 2¹ = 173493137 is a prime.

It is a super-3 number, since 3×173493139³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173493137) 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, 43582 + ... + 47395.

It is an arithmetic number, because the mean of its divisors is an integer number (43396506).

Almost surely, 2^173493139 is an apocalyptic number.

173493139 is a deficient number, since it is larger than the sum of its proper divisors (92885).

173493139 is an equidigital number, since it uses as much as digits as its factorization.

173493139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92884.

The product of its digits is 61236, while the sum is 40.

The square root of 173493139 is about 13171.6794297462. The cubic root of 173493139 is about 557.7344040338.

The spelling of 173493139 in words is "one hundred seventy-three million, four hundred ninety-three thousand, one hundred thirty-nine".