102203144 has 16 divisors (see below), whose sum is σ = 191742720. Its totient is φ = 51071760.

The previous prime is 102203111. The next prime is 102203149. The reversal of 102203144 is 441302201.

It is not an unprimeable number, because it can be changed into a prime (102203149) 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, 18977 + ... + 23759.

It is an arithmetic number, because the mean of its divisors is an integer number (11983920).

Almost surely, 2^102203144 is an apocalyptic number.

It is an amenable number.

102203144 is a deficient number, since it is larger than the sum of its proper divisors (89539576).

102203144 is a wasteful number, since it uses less digits than its factorization.

102203144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460 (or 7456 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102203144 is about 10109.5570625028. The cubic root of 102203144 is about 467.5428486944.

Adding to 102203144 its reverse (441302201), we get a palindrome (543505345).

The spelling of 102203144 in words is "one hundred two million, two hundred three thousand, one hundred forty-four".