102243144 has 16 divisors (see below), whose sum is σ = 255607920. Its totient is φ = 34081040.

The previous prime is 102243133. The next prime is 102243149. The reversal of 102243144 is 441342201.

It is a self number, because there is not a number n which added to its sum of digits gives 102243144.

It is not an unprimeable number, because it can be changed into a prime (102243149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130042 + ... + 2130089.

It is an arithmetic number, because the mean of its divisors is an integer number (15975495).

Almost surely, 2^102243144 is an apocalyptic number.

It is an amenable number.

102243144 is an abundant number, since it is smaller than the sum of its proper divisors (153364776).

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

102243144 is a wasteful number, since it uses less digits than its factorization.

102243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260140 (or 4260136 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 102243144 is about 10111.5351950137. The cubic root of 102243144 is about 467.6038359724.

Adding to 102243144 its reverse (441342201), we get a palindrome (543585345).

The spelling of 102243144 in words is "one hundred two million, two hundred forty-three thousand, one hundred forty-four".