1120605 has 8 divisors (see below), whose sum is σ = 1792992. Its totient is φ = 597648.

The previous prime is 1120591. The next prime is 1120607. The reversal of 1120605 is 5060211.

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

It is not a de Polignac number, because 1120605 - 2⁵ = 1120573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 74707 = 1120605 / (1 + 1 + 2 + 0 + 6 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37339 + ... + 37368.

It is an arithmetic number, because the mean of its divisors is an integer number (224124).

2^1120605 is an apocalyptic number.

1120605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120605 is a deficient number, since it is larger than the sum of its proper divisors (672387).

1120605 is an equidigital number, since it uses as much as digits as its factorization.

1120605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74715.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1120605 is about 1058.5863214684. The cubic root of 1120605 is about 103.8685778314.

Adding to 1120605 its reverse (5060211), we get a palindrome (6180816).

The spelling of 1120605 in words is "one million, one hundred twenty thousand, six hundred five".