2578133 has 2 divisors, whose sum is σ = 2578134. Its totient is φ = 2578132.

The previous prime is 2578117. The next prime is 2578153. The reversal of 2578133 is 3318752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 91204 = 1577^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 2578133 - 2⁴ = 2578117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₁₈₈₃₉₀ and since 2578133 and 188390 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2578096 and 2578105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2578153) 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 as a sum of consecutive naturals, namely, 1289066 + 1289067.

It is an arithmetic number, because the mean of its divisors is an integer number (1289067).

2^2578133 is an apocalyptic number.

It is an amenable number.

2578133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578133 is an equidigital number, since it uses as much as digits as its factorization.

2578133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 2578133 is about 1605.6565635278. The cubic root of 2578133 is about 137.1203056400.

The spelling of 2578133 in words is "two million, five hundred seventy-eight thousand, one hundred thirty-three".