89235137 has 2 divisors, whose sum is σ = 89235138. Its totient is φ = 89235136.

The previous prime is 89235121. The next prime is 89235149. The reversal of 89235137 is 73153298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83740801 + 5494336 = 9151^2 + 2344^2 .

It is a cyclic number.

It is not a de Polignac number, because 89235137 - 2⁴ = 89235121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89235137.

It is not a weakly prime, because it can be changed into another prime (89235037) 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 as a sum of consecutive naturals, namely, 44617568 + 44617569.

It is an arithmetic number, because the mean of its divisors is an integer number (44617569).

Almost surely, 2^89235137 is an apocalyptic number.

It is an amenable number.

89235137 is a deficient number, since it is larger than the sum of its proper divisors (1).

89235137 is an equidigital number, since it uses as much as digits as its factorization.

89235137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 89235137 is about 9446.4351477158. The cubic root of 89235137 is about 446.8673573407.

The spelling of 89235137 in words is "eighty-nine million, two hundred thirty-five thousand, one hundred thirty-seven".