1121436 has 18 divisors (see below), whose sum is σ = 2834832. Its totient is φ = 373800.

The previous prime is 1121431. The next prime is 1121443. The reversal of 1121436 is 6341211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15540 + ... + 15611.

2^1121436 is an apocalyptic number.

It is an amenable number.

1121436 is an abundant number, since it is smaller than the sum of its proper divisors (1713396).

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

1121436 is a wasteful number, since it uses less digits than its factorization.

1121436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31161 (or 31156 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1121436 is about 1058.9787533279. The cubic root of 1121436 is about 103.8942465434.

Adding to 1121436 its reverse (6341211), we get a palindrome (7462647).

The spelling of 1121436 in words is "one million, one hundred twenty-one thousand, four hundred thirty-six".