100801189 has 2 divisors, whose sum is σ = 100801190. Its totient is φ = 100801188.

The previous prime is 100801147. The next prime is 100801193. The reversal of 100801189 is 981108001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55130625 + 45670564 = 7425^2 + 6758^2 .

It is a cyclic number.

It is not a de Polignac number, because 100801189 - 2¹¹ = 100799141 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 (100801199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50400594 + 50400595.

It is an arithmetic number, because the mean of its divisors is an integer number (50400595).

Almost surely, 2^100801189 is an apocalyptic number.

It is an amenable number.

100801189 is a deficient number, since it is larger than the sum of its proper divisors (1).

100801189 is an equidigital number, since it uses as much as digits as its factorization.

100801189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 100801189 is about 10039.9795318516. The cubic root of 100801189 is about 465.3951841530.

The spelling of 100801189 in words is "one hundred million, eight hundred one thousand, one hundred eighty-nine".