102101244 has 48 divisors (see below), whose sum is σ = 273977088. Its totient is φ = 28988928.

The previous prime is 102101243. The next prime is 102101297. The reversal of 102101244 is 442101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9964 + ... + 17420.

It is an arithmetic number, because the mean of its divisors is an integer number (5707856).

Almost surely, 2^102101244 is an apocalyptic number.

102101244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102101244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136988544).

102101244 is an abundant number, since it is smaller than the sum of its proper divisors (171875844).

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

102101244 is a wasteful number, since it uses less digits than its factorization.

102101244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634 (or 7632 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102101244 is about 10104.5160200774. The cubic root of 102101244 is about 467.3874116666.

Adding to 102101244 its reverse (442101201), we get a palindrome (544202445).

The spelling of 102101244 in words is "one hundred two million, one hundred one thousand, two hundred forty-four".