823445133 has 16 divisors (see below), whose sum is σ = 1328584320. Its totient is φ = 442861056.

The previous prime is 823445113. The next prime is 823445159. The reversal of 823445133 is 331544328.

It is not a de Polignac number, because 823445133 - 2⁸ = 823444877 is a prime.

It is a super-2 number, since 2×823445133² = 1356123774122775378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 823445094 and 823445103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823445113) 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 15 ways as a sum of consecutive naturals, for example, 1152928 + ... + 1153641.

It is an arithmetic number, because the mean of its divisors is an integer number (83036520).

Almost surely, 2^823445133 is an apocalyptic number.

It is an amenable number.

823445133 is a deficient number, since it is larger than the sum of its proper divisors (505139187).

823445133 is a wasteful number, since it uses less digits than its factorization.

823445133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306596.

The product of its digits is 34560, while the sum is 33.

The square root of 823445133 is about 28695.7337072952. The cubic root of 823445133 is about 937.2991481544.

The spelling of 823445133 in words is "eight hundred twenty-three million, four hundred forty-five thousand, one hundred thirty-three".