905133 has 4 divisors (see below), whose sum is σ = 1206848. Its totient is φ = 603420.

The previous prime is 905123. The next prime is 905137. The reversal of 905133 is 331509.

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: 331509 = 3 ⋅110503.

It is a de Polignac number, because none of the positive numbers 2^k-905133 is a prime.

It is a super-3 number, since 3×905133³ = 2224633392008962911, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

905133 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 905133.

It is not an unprimeable number, because it can be changed into a prime (905137) 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, 150853 + ... + 150858.

It is an arithmetic number, because the mean of its divisors is an integer number (301712).

2⁹⁰⁵¹³³ is an apocalyptic number.

It is an amenable number.

905133 is a deficient number, since it is larger than the sum of its proper divisors (301715).

905133 is a wasteful number, since it uses less digits than its factorization.

905133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301714.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 905133 is about 951.3847802020. The cubic root of 905133 is about 96.7321408723.

The spelling of 905133 in words is "nine hundred five thousand, one hundred thirty-three".