1745222 has 4 divisors (see below), whose sum is σ = 2617836. Its totient is φ = 872610.

The previous prime is 1745213. The next prime is 1745231. The reversal of 1745222 is 2225471.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2225471 = 97 ⋅22943.

It is an interprime number because it is at equal distance from previous prime (1745213) and next prime (1745231).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436304 + ... + 436307.

It is an arithmetic number, because the mean of its divisors is an integer number (654459).

2^1745222 is an apocalyptic number.

1745222 is a deficient number, since it is larger than the sum of its proper divisors (872614).

1745222 is an equidigital number, since it uses as much as digits as its factorization.

1745222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872613.

The product of its digits is 1120, while the sum is 23.

The square root of 1745222 is about 1321.0685069291. The cubic root of 1745222 is about 120.3973402944.

Subtracting 1745222 from its reverse (2225471), we obtain a square (480249 = 693²).

The spelling of 1745222 in words is "one million, seven hundred forty-five thousand, two hundred twenty-two".