133783025 has 6 divisors (see below), whose sum is σ = 165890982. Its totient is φ = 107026400.

The previous prime is 133783021. The next prime is 133783033. The reversal of 133783025 is 520387331.

It can be written as a sum of positive squares in 3 ways, for example, as 23931664 + 109851361 = 4892^2 + 10481^2 .

It is not a de Polignac number, because 133783025 - 2² = 133783021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133782982 and 133783000.

It is not an unprimeable number, because it can be changed into a prime (133783021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2675636 + ... + 2675685.

It is an arithmetic number, because the mean of its divisors is an integer number (27648497).

Almost surely, 2^133783025 is an apocalyptic number.

It is an amenable number.

133783025 is a deficient number, since it is larger than the sum of its proper divisors (32107957).

133783025 is an equidigital number, since it uses as much as digits as its factorization.

133783025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351331 (or 5351326 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 133783025 is about 11566.4612133530. The cubic root of 133783025 is about 511.4466487247.

The spelling of 133783025 in words is "one hundred thirty-three million, seven hundred eighty-three thousand, twenty-five".