103215300 has 72 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 27400320.

The previous prime is 103215289. The next prime is 103215319. The reversal of 103215300 is 3512301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103215300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80061 + ... + 81339.

It is an arithmetic number, because the mean of its divisors is an integer number (4166400).

Almost surely, 2^103215300 is an apocalyptic number.

103215300 is a gapful number since it is divisible by the number (10) 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 103215300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149990400).

103215300 is an abundant number, since it is smaller than the sum of its proper divisors (196765500).

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

103215300 is a wasteful number, since it uses less digits than its factorization.

103215300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 103215300 is about 10159.4930975910. The cubic root of 103215300 is about 469.0811988228.

Adding to 103215300 its reverse (3512301), we get a palindrome (106727601).

The spelling of 103215300 in words is "one hundred three million, two hundred fifteen thousand, three hundred".