102012144 has 40 divisors (see below), whose sum is σ = 283804752. Its totient is φ = 31388160.

The previous prime is 102012133. The next prime is 102012179. The reversal of 102012144 is 441210201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81117 + ... + 82364.

Almost surely, 2^102012144 is an apocalyptic number.

It is an amenable number.

102012144 is an abundant number, since it is smaller than the sum of its proper divisors (181792608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102012144 is a wasteful number, since it uses less digits than its factorization.

102012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163505 (or 163499 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102012144 is about 10100.1061380562. The cubic root of 102012144 is about 467.2514148317.

Adding to 102012144 its reverse (441210201), we get a palindrome (543222345).

The spelling of 102012144 in words is "one hundred two million, twelve thousand, one hundred forty-four".