89145653 has 2 divisors, whose sum is σ = 89145654. Its totient is φ = 89145652.

The previous prime is 89145649. The next prime is 89145673. The reversal of 89145653 is 35654198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72556324 + 16589329 = 8518^2 + 4073^2 .

It is a cyclic number.

It is not a de Polignac number, because 89145653 - 2² = 89145649 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89145653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89145643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44572826 + 44572827.

It is an arithmetic number, because the mean of its divisors is an integer number (44572827).

Almost surely, 2^89145653 is an apocalyptic number.

It is an amenable number.

89145653 is a deficient number, since it is larger than the sum of its proper divisors (1).

89145653 is an equidigital number, since it uses as much as digits as its factorization.

89145653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 89145653 is about 9441.6975698229. The cubic root of 89145653 is about 446.7179361832.

It can be divided in two parts, 89145 and 653, that added together give a palindrome (89798).

The spelling of 89145653 in words is "eighty-nine million, one hundred forty-five thousand, six hundred fifty-three".