1123455 has 8 divisors (see below), whose sum is σ = 1797552. Its totient is φ = 599168.

The previous prime is 1123439. The next prime is 1123477. The reversal of 1123455 is 5543211.

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 1123455 - 2⁴ = 1123439 is a prime.

It is a super-2 number, since 2×1123455² = 2524302274050, which contains 22 as substring.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37434 + ... + 37463.

It is an arithmetic number, because the mean of its divisors is an integer number (224694).

2^1123455 is an apocalyptic number.

1123455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123455 is a deficient number, since it is larger than the sum of its proper divisors (674097).

1123455 is an equidigital number, since it uses as much as digits as its factorization.

1123455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74905.

The product of its digits is 600, while the sum is 21.

The square root of 1123455 is about 1059.9316015668. The cubic root of 1123455 is about 103.9565585333.

Adding to 1123455 its reverse (5543211), we get a palindrome (6666666).

The spelling of 1123455 in words is "one million, one hundred twenty-three thousand, four hundred fifty-five".