101100089 has 2 divisors, whose sum is σ = 101100090. Its totient is φ = 101100088.

The previous prime is 101100067. The next prime is 101100113. The reversal of 101100089 is 980001101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97614400 + 3485689 = 9880^2 + 1867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101100089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101100089.

It is not a weakly prime, because it can be changed into another prime (101100029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550044 + 50550045.

It is an arithmetic number, because the mean of its divisors is an integer number (50550045).

Almost surely, 2^101100089 is an apocalyptic number.

It is an amenable number.

101100089 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100089 is an equidigital number, since it uses as much as digits as its factorization.

101100089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 101100089 is about 10054.8540019236. The cubic root of 101100089 is about 465.8547334665.

The spelling of 101100089 in words is "one hundred one million, one hundred thousand, eighty-nine".