2151336 has 64 divisors (see below), whose sum is σ = 6091200. Its totient is φ = 627200.

The previous prime is 2151329. The next prime is 2151337. The reversal of 2151336 is 6331512.

It is not an unprimeable number, because it can be changed into a prime (2151337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7516 + ... + 7796.

It is an arithmetic number, because the mean of its divisors is an integer number (95175).

2^2151336 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 2151336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3045600).

2151336 is an abundant number, since it is smaller than the sum of its proper divisors (3939864).

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

2151336 is a wasteful number, since it uses less digits than its factorization.

2151336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 326 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 2151336 is about 1466.7433313297. The cubic root of 2151336 is about 129.0930162623.

Adding to 2151336 its reverse (6331512), we get a palindrome (8482848).

It can be divided in two parts, 215 and 1336, that added together give a palindrome (1551).

The spelling of 2151336 in words is "two million, one hundred fifty-one thousand, three hundred thirty-six".