2251361 has 8 divisors (see below), whose sum is σ = 2724480. Its totient is φ = 1816128.

The previous prime is 2251349. The next prime is 2251369. The reversal of 2251361 is 1631522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251361 - 2⁶ = 2251297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9341 + ... + 9578.

It is an arithmetic number, because the mean of its divisors is an integer number (340560).

2^2251361 is an apocalyptic number.

It is an amenable number.

2251361 is a deficient number, since it is larger than the sum of its proper divisors (473119).

2251361 is a wasteful number, since it uses less digits than its factorization.

2251361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943.

The product of its digits is 360, while the sum is 20.

The square root of 2251361 is about 1500.4535980829. The cubic root of 2251361 is about 131.0634853408.

Adding to 2251361 its reverse (1631522), we get a palindrome (3882883).

The spelling of 2251361 in words is "two million, two hundred fifty-one thousand, three hundred sixty-one".