1121633 has 4 divisors (see below), whose sum is σ = 1160340. Its totient is φ = 1082928.

The previous prime is 1121629. The next prime is 1121651. The reversal of 1121633 is 3361211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 253009 + 868624 = 503^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121633 - 2² = 1121629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19310 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (290085).

2^1121633 is an apocalyptic number.

It is an amenable number.

1121633 is a deficient number, since it is larger than the sum of its proper divisors (38707).

1121633 is an equidigital number, since it uses as much as digits as its factorization.

1121633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38706.

The product of its digits is 108, while the sum is 17.

The square root of 1121633 is about 1059.0717633853. The cubic root of 1121633 is about 103.9003298057.

Adding to 1121633 its reverse (3361211), we get a palindrome (4482844).

The spelling of 1121633 in words is "one million, one hundred twenty-one thousand, six hundred thirty-three".