89535181 has 2 divisors, whose sum is σ = 89535182. Its totient is φ = 89535180.

The previous prime is 89535167. The next prime is 89535197. The reversal of 89535181 is 18153598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 62500 = 9459^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 89535181 - 2⁷ = 89535053 is a prime.

It is a super-2 number, since 2×89535181² = 16033097273405522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89539181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44767590 + 44767591.

It is an arithmetic number, because the mean of its divisors is an integer number (44767591).

Almost surely, 2^89535181 is an apocalyptic number.

It is an amenable number.

89535181 is a deficient number, since it is larger than the sum of its proper divisors (1).

89535181 is an equidigital number, since it uses as much as digits as its factorization.

89535181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 40.

The square root of 89535181 is about 9462.3031551520. The cubic root of 89535181 is about 447.3676455955.

The spelling of 89535181 in words is "eighty-nine million, five hundred thirty-five thousand, one hundred eighty-one".