6121320 has 64 divisors (see below), whose sum is σ = 19008000. Its totient is φ = 1575168.

The previous prime is 6121319. The next prime is 6121337. The reversal of 6121320 is 231216.

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 6121320.

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 15 ways as a sum of consecutive naturals, for example, 2601 + ... + 4359.

It is an arithmetic number, because the mean of its divisors is an integer number (297000).

Almost surely, 2^6121320 is an apocalyptic number.

6121320 is a gapful number since it is divisible by the number (60) 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 6121320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9504000).

6121320 is an abundant number, since it is smaller than the sum of its proper divisors (12886680).

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

6121320 is a wasteful number, since it uses less digits than its factorization.

6121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 6121320 is about 2474.1301501740. The cubic root of 6121320 is about 182.9286353166.

Adding to 6121320 its reverse (231216), we get a palindrome (6352536).

It can be divided in two parts, 6121 and 320, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 6121320 in words is "six million, one hundred twenty-one thousand, three hundred twenty".