1222345 has 8 divisors (see below), whose sum is σ = 1477440. Its totient is φ = 970800.

The previous prime is 1222307. The next prime is 1222373. The reversal of 1222345 is 5432221.

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

It is not a de Polignac number, because 1222345 - 2¹⁵ = 1189577 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^1222345 is an apocalyptic number.

It is an amenable number.

1222345 is a deficient number, since it is larger than the sum of its proper divisors (255095).

1222345 is a wasteful number, since it uses less digits than its factorization.

1222345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775.

The product of its digits is 480, while the sum is 19.

The square root of 1222345 is about 1105.5971237300. The cubic root of 1222345 is about 106.9213910067.

Adding to 1222345 its reverse (5432221), we get a palindrome (6654566).

The spelling of 1222345 in words is "one million, two hundred twenty-two thousand, three hundred forty-five".