1122278 has 8 divisors (see below), whose sum is σ = 1711200. Its totient is φ = 551880.

The previous prime is 1122269. The next prime is 1122281. The reversal of 1122278 is 8722211.

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

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 3 ways as a sum of consecutive naturals, for example, 4478 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (213900).

2^1122278 is an apocalyptic number.

1122278 is a deficient number, since it is larger than the sum of its proper divisors (588922).

1122278 is an equidigital number, since it uses as much as digits as its factorization.

1122278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9262.

The product of its digits is 448, while the sum is 23.

The square root of 1122278 is about 1059.3762315627. The cubic root of 1122278 is about 103.9202421035.

Adding to 1122278 its reverse (8722211), we get a palindrome (9844489).

The spelling of 1122278 in words is "one million, one hundred twenty-two thousand, two hundred seventy-eight".