88432181 has 12 divisors (see below), whose sum is σ = 96769836. Its totient is φ = 80530560.

The previous prime is 88432177. The next prime is 88432187. The reversal of 88432181 is 18123488.

It can be written as a sum of positive squares in 2 ways, for example, as 44009956 + 44422225 = 6634^2 + 6665^2 .

It is not a de Polignac number, because 88432181 - 2² = 88432177 is a prime.

It is a super-2 number, since 2×88432181² = 15640501272833522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88432187) 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, 13631 + ... + 19043.

It is an arithmetic number, because the mean of its divisors is an integer number (8064153).

Almost surely, 2^88432181 is an apocalyptic number.

It is an amenable number.

88432181 is a deficient number, since it is larger than the sum of its proper divisors (8337655).

88432181 is a wasteful number, since it uses less digits than its factorization.

88432181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492 (or 5461 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 88432181 is about 9403.8386311123. The cubic root of 88432181 is about 445.5229823178.

The spelling of 88432181 in words is "eighty-eight million, four hundred thirty-two thousand, one hundred eighty-one".