102202144 has 24 divisors (see below), whose sum is σ = 219503088. Its totient is φ = 46455360.

The previous prime is 102202129. The next prime is 102202183. The reversal of 102202144 is 441202201.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144822 + ... + 145525.

It is an arithmetic number, because the mean of its divisors is an integer number (9145962).

Almost surely, 2^102202144 is an apocalyptic number.

It is an amenable number.

102202144 is an abundant number, since it is smaller than the sum of its proper divisors (117300944).

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

102202144 is a wasteful number, since it uses less digits than its factorization.

102202144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290368 (or 290360 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 102202144 is about 10109.5076042308. The cubic root of 102202144 is about 467.5413238086.

Adding to 102202144 its reverse (441202201), we get a palindrome (543404345).

The spelling of 102202144 in words is "one hundred two million, two hundred two thousand, one hundred forty-four".