2251069 has 4 divisors (see below), whose sum is σ = 2293596. Its totient is φ = 2208544.

The previous prime is 2251061. The next prime is 2251099. The reversal of 2251069 is 9601522.

2251069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 1276900 = 987^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251069 - 2³ = 2251061 is a prime.

It is a super-2 number, since 2×2251069² = 10134623285522, which contains 22 as substring.

It is a Duffinian number.

2251069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251061) 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 3 ways as a sum of consecutive naturals, for example, 21184 + ... + 21289.

It is an arithmetic number, because the mean of its divisors is an integer number (573399).

2^2251069 is an apocalyptic number.

It is an amenable number.

2251069 is a deficient number, since it is larger than the sum of its proper divisors (42527).

2251069 is an equidigital number, since it uses as much as digits as its factorization.

2251069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42526.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2251069 is about 1500.3562910189. The cubic root of 2251069 is about 131.0578188140.

The spelling of 2251069 in words is "two million, two hundred fifty-one thousand, sixty-nine".