6121280 has 112 divisors (see below), whose sum is σ = 16678656. Its totient is φ = 2119680.

The previous prime is 6121261. The next prime is 6121319. The reversal of 6121280 is 821216.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130217 + ... + 130263.

Almost surely, 2^6121280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6121280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8339328).

6121280 is an abundant number, since it is smaller than the sum of its proper divisors (10557376).

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

6121280 is a wasteful number, since it uses less digits than its factorization.

6121280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 6121280 is about 2474.1220665117. The cubic root of 6121280 is about 182.9282368643.

Adding to 6121280 its reverse (821216), we get a palindrome (6942496).

The spelling of 6121280 in words is "six million, one hundred twenty-one thousand, two hundred eighty".