175428081 has 12 divisors (see below), whose sum is σ = 254341620. Its totient is φ = 116515680.

The previous prime is 175428059. The next prime is 175428119. The reversal of 175428081 is 180824571.

It can be written as a sum of positive squares in 2 ways, for example, as 103856481 + 71571600 = 10191^2 + 8460^2 .

It is not a de Polignac number, because 175428081 - 2⁹ = 175427569 is a prime.

It is a super-2 number, since 2×175428081² = 61550023206685122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (175428031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33810 + ... + 38651.

It is an arithmetic number, because the mean of its divisors is an integer number (21195135).

Almost surely, 2^175428081 is an apocalyptic number.

It is an amenable number.

175428081 is a deficient number, since it is larger than the sum of its proper divisors (78913539).

175428081 is a wasteful number, since it uses less digits than its factorization.

175428081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72736 (or 72733 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 175428081 is about 13244.9266136132. The cubic root of 175428081 is about 559.8001848769.

The spelling of 175428081 in words is "one hundred seventy-five million, four hundred twenty-eight thousand, eighty-one".