101189089 has 2 divisors, whose sum is σ = 101189090. Its totient is φ = 101189088.

The previous prime is 101189047. The next prime is 101189131. The reversal of 101189089 is 980981101.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (101189047) and next prime (101189131).

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 3179089 = 9900^2 + 1783^2 .

It is a cyclic number.

It is not a de Polignac number, because 101189089 - 2¹³ = 101180897 is a prime.

It is not a weakly prime, because it can be changed into another prime (101189009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50594544 + 50594545.

It is an arithmetic number, because the mean of its divisors is an integer number (50594545).

Almost surely, 2^101189089 is an apocalyptic number.

It is an amenable number.

101189089 is a deficient number, since it is larger than the sum of its proper divisors (1).

101189089 is an equidigital number, since it uses as much as digits as its factorization.

101189089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 101189089 is about 10059.2787514811. The cubic root of 101189089 is about 465.9913931251.

It can be divided in two parts, 1011 and 89089, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 101189089 in words is "one hundred one million, one hundred eighty-nine thousand, eighty-nine".