22631033 has 4 divisors (see below), whose sum is σ = 23822160. Its totient is φ = 21439908.

The previous prime is 22631003. The next prime is 22631039. The reversal of 22631033 is 33013622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33013622 = 2 ⋅16506811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22631033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22630996 and 22631014.

It is not an unprimeable number, because it can be changed into a prime (22631039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595535 + ... + 595572.

It is an arithmetic number, because the mean of its divisors is an integer number (5955540).

Almost surely, 2^22631033 is an apocalyptic number.

It is an amenable number.

22631033 is a deficient number, since it is larger than the sum of its proper divisors (1191127).

22631033 is a wasteful number, since it uses less digits than its factorization.

22631033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191126.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 22631033 is about 4757.2085302202. The cubic root of 22631033 is about 282.8577783472.

Adding to 22631033 its reverse (33013622), we get a palindrome (55644655).

The spelling of 22631033 in words is "twenty-two million, six hundred thirty-one thousand, thirty-three".