1122665 has 8 divisors (see below), whose sum is σ = 1390848. Its totient is φ = 869040.

The previous prime is 1122659. The next prime is 1122679. The reversal of 1122665 is 5662211.

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

It is not a de Polignac number, because 1122665 - 2¹² = 1118569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122665.

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, 3467 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (173856).

2^1122665 is an apocalyptic number.

It is an amenable number.

1122665 is a deficient number, since it is larger than the sum of its proper divisors (268183).

1122665 is an equidigital number, since it uses as much as digits as its factorization.

1122665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7279.

The product of its digits is 720, while the sum is 23.

The square root of 1122665 is about 1059.5588704739. The cubic root of 1122665 is about 103.9321858203.

Adding to 1122665 its reverse (5662211), we get a palindrome (6784876).

The spelling of 1122665 in words is "one million, one hundred twenty-two thousand, six hundred sixty-five".