133456825 has 6 divisors (see below), whose sum is σ = 165486494. Its totient is φ = 106765440.

The previous prime is 133456823. The next prime is 133456847. The reversal of 133456825 is 528654331.

It can be written as a sum of positive squares in 3 ways, for example, as 262144 + 133194681 = 512^2 + 11541^2 .

It is not a de Polignac number, because 133456825 - 2¹ = 133456823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133456823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2669112 + ... + 2669161.

Almost surely, 2^133456825 is an apocalyptic number.

It is an amenable number.

133456825 is a deficient number, since it is larger than the sum of its proper divisors (32029669).

133456825 is an equidigital number, since it uses as much as digits as its factorization.

133456825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338283 (or 5338278 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 133456825 is about 11552.3514922288. The cubic root of 133456825 is about 511.0306276425.

The spelling of 133456825 in words is "one hundred thirty-three million, four hundred fifty-six thousand, eight hundred twenty-five".