133504025 has 6 divisors (see below), whose sum is σ = 165545022. Its totient is φ = 106803200.

The previous prime is 133504001. The next prime is 133504031. The reversal of 133504025 is 520405331.

It can be written as a sum of positive squares in 3 ways, for example, as 3794704 + 129709321 = 1948^2 + 11389^2 .

It is not a de Polignac number, because 133504025 - 2¹⁶ = 133438489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2670056 + ... + 2670105.

It is an arithmetic number, because the mean of its divisors is an integer number (27590837).

Almost surely, 2^133504025 is an apocalyptic number.

It is an amenable number.

133504025 is a deficient number, since it is larger than the sum of its proper divisors (32040997).

133504025 is an equidigital number, since it uses as much as digits as its factorization.

133504025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340171 (or 5340166 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 133504025 is about 11554.3941857633. The cubic root of 133504025 is about 511.0908663566.

Adding to 133504025 its reverse (520405331), we get a palindrome (653909356).

The spelling of 133504025 in words is "one hundred thirty-three million, five hundred four thousand, twenty-five".