10315220 has 12 divisors (see below), whose sum is σ = 21662004. Its totient is φ = 4126080.

The previous prime is 10315211. The next prime is 10315223. The reversal of 10315220 is 2251301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5098564 + 5216656 = 2258^2 + 2284^2 .

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 10315195 and 10315204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10315223) by changing a digit.

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, 257861 + ... + 257900.

It is an arithmetic number, because the mean of its divisors is an integer number (1805167).

Almost surely, 2^10315220 is an apocalyptic number.

10315220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10315220 is an abundant number, since it is smaller than the sum of its proper divisors (11346784).

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

10315220 is a wasteful number, since it uses less digits than its factorization.

10315220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515770 (or 515768 counting only the distinct ones).

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

The square root of 10315220 is about 3211.7316201700. The cubic root of 10315220 is about 217.6838275009.

Adding to 10315220 its reverse (2251301), we get a palindrome (12566521).

The spelling of 10315220 in words is "ten million, three hundred fifteen thousand, two hundred twenty".