11920533 has 4 divisors (see below), whose sum is σ = 15894048. Its totient is φ = 7947020.

The previous prime is 11920529. The next prime is 11920541. The reversal of 11920533 is 33502911.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 11920533 - 2² = 11920529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920033) 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, 1986753 + ... + 1986758.

It is an arithmetic number, because the mean of its divisors is an integer number (3973512).

Almost surely, 2^11920533 is an apocalyptic number.

It is an amenable number.

11920533 is a deficient number, since it is larger than the sum of its proper divisors (3973515).

11920533 is an equidigital number, since it uses as much as digits as its factorization.

11920533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973514.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 11920533 is about 3452.6124891160. The cubic root of 11920533 is about 228.4363565616.

The spelling of 11920533 in words is "eleven million, nine hundred twenty thousand, five hundred thirty-three".