103015220 has 96 divisors (see below), whose sum is σ = 272111616. Its totient is φ = 31824000.

The previous prime is 103015217. The next prime is 103015267. The reversal of 103015220 is 22510301.

It is a happy number.

It is a super-2 number, since 2×103015220² = 21224271103296800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 103015195 and 103015204.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 232319 + ... + 232761.

It is an arithmetic number, because the mean of its divisors is an integer number (2834496).

Almost surely, 2^103015220 is an apocalyptic number.

103015220 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 103015220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136055808).

103015220 is an abundant number, since it is smaller than the sum of its proper divisors (169096396).

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

103015220 is a wasteful number, since it uses less digits than its factorization.

103015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 103015220 is about 10149.6413729747. The cubic root of 103015220 is about 468.7779024576. Note that the first 3 decimals are identical.

Adding to 103015220 its reverse (22510301), we get a palindrome (125525521).

The spelling of 103015220 in words is "one hundred three million, fifteen thousand, two hundred twenty".