102144040189 has 2 divisors, whose sum is σ = 102144040190. Its totient is φ = 102144040188.

The previous prime is 102144040183. The next prime is 102144040211. The reversal of 102144040189 is 981040441201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93707617689 + 8436422500 = 306117^2 + 91850^2 .

It is a cyclic number.

It is not a de Polignac number, because 102144040189 - 2⁵ = 102144040157 is a prime.

It is a super-2 number, since 2×102144040189² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102144040183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51072020094 + 51072020095.

It is an arithmetic number, because the mean of its divisors is an integer number (51072020095).

Almost surely, 2^102144040189 is an apocalyptic number.

It is an amenable number.

102144040189 is a deficient number, since it is larger than the sum of its proper divisors (1).

102144040189 is an equidigital number, since it uses as much as digits as its factorization.

102144040189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 102144040189 in words is "one hundred two billion, one hundred forty-four million, forty thousand, one hundred eighty-nine".