102144436562 has 24 divisors (see below), whose sum is σ = 178265259900. Its totient is φ = 43767924480.

The previous prime is 102144436549. The next prime is 102144436567. The reversal of 102144436562 is 265634441201.

It can be written as a sum of positive squares in 2 ways, for example, as 99856632001 + 2287804561 = 316001^2 + 47831^2 .

It is not an unprimeable number, because it can be changed into a prime (102144436567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438362 + ... + 629642.

Almost surely, 2^102144436562 is an apocalyptic number.

102144436562 is a deficient number, since it is larger than the sum of its proper divisors (76120823338).

102144436562 is a wasteful number, since it uses less digits than its factorization.

102144436562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196746 (or 196739 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 102144436562 its reverse (265634441201), we get a palindrome (367778877763).

The spelling of 102144436562 in words is "one hundred two billion, one hundred forty-four million, four hundred thirty-six thousand, five hundred sixty-two".