89140181 has 4 divisors (see below), whose sum is σ = 95997132. Its totient is φ = 82283232.

The previous prime is 89140169. The next prime is 89140199. The reversal of 89140181 is 18104198.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6421156 + 82719025 = 2534^2 + 9095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89140181 is a prime.

It is a super-2 number, since 2×89140181² = 15891943737425522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89140481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3428456 + ... + 3428481.

It is an arithmetic number, because the mean of its divisors is an integer number (23999283).

Almost surely, 2^89140181 is an apocalyptic number.

It is an amenable number.

89140181 is a deficient number, since it is larger than the sum of its proper divisors (6856951).

89140181 is a wasteful number, since it uses less digits than its factorization.

89140181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856950.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 89140181 is about 9441.4077869775. The cubic root of 89140181 is about 446.7087957466.

The spelling of 89140181 in words is "eighty-nine million, one hundred forty thousand, one hundred eighty-one".