133455125 has 16 divisors (see below), whose sum is σ = 167789232. Its totient is φ = 105971200.

The previous prime is 133455121. The next prime is 133455139. The reversal of 133455125 is 521554331.

It can be written as a sum of positive squares in 8 ways, for example, as 8059921 + 125395204 = 2839^2 + 11198^2 .

It is not a de Polignac number, because 133455125 - 2² = 133455121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133455121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13229 + ... + 21021.

It is an arithmetic number, because the mean of its divisors is an integer number (10486827).

Almost surely, 2^133455125 is an apocalyptic number.

It is an amenable number.

133455125 is a deficient number, since it is larger than the sum of its proper divisors (34334107).

133455125 is an equidigital number, since it uses as much as digits as its factorization.

133455125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945 (or 7935 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 133455125 is about 11552.2779139008. The cubic root of 133455125 is about 511.0284577629.

The spelling of 133455125 in words is "one hundred thirty-three million, four hundred fifty-five thousand, one hundred twenty-five".