1122545 has 8 divisors (see below), whose sum is σ = 1353024. Its totient is φ = 894064.

The previous prime is 1122533. The next prime is 1122551. The reversal of 1122545 is 5452211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122545 - 2⁴ = 1122529 is a prime.

It is a Duffinian 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, 1412 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (169128).

2^1122545 is an apocalyptic number.

It is an amenable number.

1122545 is a deficient number, since it is larger than the sum of its proper divisors (230479).

1122545 is an equidigital number, since it uses as much as digits as its factorization.

1122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999.

The product of its digits is 400, while the sum is 20.

The square root of 1122545 is about 1059.5022416210. The cubic root of 1122545 is about 103.9284826359.

Adding to 1122545 its reverse (5452211), we get a palindrome (6574756).

It can be divided in two parts, 112254 and 5, that multiplied together give a triangular number (561270 = T₁₀₅₉).

The spelling of 1122545 in words is "one million, one hundred twenty-two thousand, five hundred forty-five".