102213144 has 64 divisors (see below), whose sum is σ = 309744000. Its totient is φ = 30972960.

The previous prime is 102213113. The next prime is 102213151. The reversal of 102213144 is 441312201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19134 + ... + 23885.

It is an arithmetic number, because the mean of its divisors is an integer number (4839750).

Almost surely, 2^102213144 is an apocalyptic number.

It is an amenable number.

102213144 is an abundant number, since it is smaller than the sum of its proper divisors (207530856).

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

102213144 is a wasteful number, since it uses less digits than its factorization.

102213144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43045 (or 43035 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 102213144 is about 10110.0516319156. The cubic root of 102213144 is about 467.5580970055.

Adding to 102213144 its reverse (441312201), we get a palindrome (543525345).

The spelling of 102213144 in words is "one hundred two million, two hundred thirteen thousand, one hundred forty-four".