89185541 has 2 divisors, whose sum is σ = 89185542. Its totient is φ = 89185540.

The previous prime is 89185531. The next prime is 89185561. The reversal of 89185541 is 14558198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71334916 + 17850625 = 8446^2 + 4225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89185541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89185501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44592770 + 44592771.

It is an arithmetic number, because the mean of its divisors is an integer number (44592771).

Almost surely, 2^89185541 is an apocalyptic number.

It is an amenable number.

89185541 is a deficient number, since it is larger than the sum of its proper divisors (1).

89185541 is an equidigital number, since it uses as much as digits as its factorization.

89185541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 41.

The square root of 89185541 is about 9443.8096655958. The cubic root of 89185541 is about 446.7845538568.

The spelling of 89185541 in words is "eighty-nine million, one hundred eighty-five thousand, five hundred forty-one".