168040533 has 4 divisors (see below), whose sum is σ = 224054048. Its totient is φ = 112027020.

The previous prime is 168040511. The next prime is 168040573. The reversal of 168040533 is 335040861.

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 not a de Polignac number, because 168040533 - 2⁶ = 168040469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168040533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168040573) 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, 28006753 + ... + 28006758.

It is an arithmetic number, because the mean of its divisors is an integer number (56013512).

Almost surely, 2^168040533 is an apocalyptic number.

It is an amenable number.

168040533 is a deficient number, since it is larger than the sum of its proper divisors (56013515).

168040533 is an equidigital number, since it uses as much as digits as its factorization.

168040533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56013514.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 168040533 is about 12963.0448969368. The cubic root of 168040533 is about 551.8292076895.

The spelling of 168040533 in words is "one hundred sixty-eight million, forty thousand, five hundred thirty-three".