2245747 has 4 divisors (see below), whose sum is σ = 2566576. Its totient is φ = 1924920.

The previous prime is 2245739. The next prime is 2245759. The reversal of 2245747 is 7475422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7475422 = 2 ⋅3737711.

It is a cyclic number.

It is not a de Polignac number, because 2245747 - 2³ = 2245739 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 4 + 5⁷ + 7⁴ + 4⁸ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2245787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160404 + ... + 160417.

It is an arithmetic number, because the mean of its divisors is an integer number (641644).

2^2245747 is an apocalyptic number.

2245747 is a deficient number, since it is larger than the sum of its proper divisors (320829).

2245747 is an equidigital number, since it uses as much as digits as its factorization.

2245747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320828.

The product of its digits is 15680, while the sum is 31.

The square root of 2245747 is about 1498.5816627732. The cubic root of 2245747 is about 130.9544545745.

It can be divided in two parts, 2245 and 747, that added together give a palindrome (2992).

The spelling of 2245747 in words is "two million, two hundred forty-five thousand, seven hundred forty-seven".