2251207 has 6 divisors (see below), whose sum is σ = 2618808. Its totient is φ = 1929564.

The previous prime is 2251201. The next prime is 2251211. The reversal of 2251207 is 7021522.

2251207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251207 - 2³ = 2251199 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁵ + 5⁵ + 1 + 2²¹ + 0 + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 22923 + ... + 23020.

It is an arithmetic number, because the mean of its divisors is an integer number (436468).

2^2251207 is an apocalyptic number.

2251207 is a deficient number, since it is larger than the sum of its proper divisors (367601).

2251207 is an equidigital number, since it uses as much as digits as its factorization.

2251207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45957 (or 45950 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2251207 is about 1500.4022793904. The cubic root of 2251207 is about 131.0604968912.

Adding to 2251207 its reverse (7021522), we get a palindrome (9272729).

The spelling of 2251207 in words is "two million, two hundred fifty-one thousand, two hundred seven".