102242144 has 24 divisors (see below), whose sum is σ = 201642840. Its totient is φ = 51031296.

The previous prime is 102242143. The next prime is 102242149. The reversal of 102242144 is 441242201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102242143) 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, 18092 + ... + 23060.

It is an arithmetic number, because the mean of its divisors is an integer number (8401785).

Almost surely, 2^102242144 is an apocalyptic number.

It is an amenable number.

102242144 is a deficient number, since it is larger than the sum of its proper divisors (99400696).

102242144 is an equidigital number, since it uses as much as digits as its factorization.

102242144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622 (or 5614 counting only the distinct ones).

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

The square root of 102242144 is about 10111.4857464173. The cubic root of 102242144 is about 467.6023114844.

Adding to 102242144 its reverse (441242201), we get a palindrome (543484345).

The spelling of 102242144 in words is "one hundred two million, two hundred forty-two thousand, one hundred forty-four".