173086431 has 32 divisors (see below), whose sum is σ = 279045120. Its totient is φ = 93291264.

The previous prime is 173086421. The next prime is 173086439. The reversal of 173086431 is 134680371.

It is not a de Polignac number, because 173086431 - 2¹⁷ = 172955359 is a prime.

It is a super-2 number, since 2×173086431² = 59917825192635522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 173086392 and 173086401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173086439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32805 + ... + 37713.

It is an arithmetic number, because the mean of its divisors is an integer number (8720160).

Almost surely, 2^173086431 is an apocalyptic number.

173086431 is a deficient number, since it is larger than the sum of its proper divisors (105958689).

173086431 is a wasteful number, since it uses less digits than its factorization.

173086431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 173086431 is about 13156.2316413174. The cubic root of 173086431 is about 557.2982436036.

The spelling of 173086431 in words is "one hundred seventy-three million, eighty-six thousand, four hundred thirty-one".