102144404 has 12 divisors (see below), whose sum is σ = 179521524. Its totient is φ = 50852544.

The previous prime is 102144397. The next prime is 102144421. The reversal of 102144404 is 404441201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72420100 + 29724304 = 8510^2 + 5452^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53867 + ... + 55730.

It is an arithmetic number, because the mean of its divisors is an integer number (14960127).

Almost surely, 2^102144404 is an apocalyptic number.

It is an amenable number.

102144404 is a deficient number, since it is larger than the sum of its proper divisors (77377120).

102144404 is a wasteful number, since it uses less digits than its factorization.

102144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109834 (or 109832 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 102144404 is about 10106.6514731636. The cubic root of 102144404 is about 467.4532600283.

Adding to 102144404 its reverse (404441201), we get a palindrome (506585605).

The spelling of 102144404 in words is "one hundred two million, one hundred forty-four thousand, four hundred four".