1135220 has 24 divisors (see below), whose sum is σ = 2462208. Its totient is φ = 439200.

The previous prime is 1135217. The next prime is 1135229. The reversal of 1135220 is 225311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1135195 and 1135204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135229) 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, 296 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (102592).

2^1135220 is an apocalyptic number.

1135220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135220 is an abundant number, since it is smaller than the sum of its proper divisors (1326988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1135220 is a wasteful number, since it uses less digits than its factorization.

1135220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1135220 is about 1065.4670337462. The cubic root of 1135220 is about 104.3181823504.

Subtracting from 1135220 its reverse (225311), we obtain a palindrome (909909).

The spelling of 1135220 in words is "one million, one hundred thirty-five thousand, two hundred twenty".