133324481 has 2 divisors, whose sum is σ = 133324482. Its totient is φ = 133324480.

The previous prime is 133324441. The next prime is 133324507. The reversal of 133324481 is 184423331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133171600 + 152881 = 11540^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 133324481 - 2⁶ = 133324417 is a prime.

It is a super-2 number, since 2×133324481² = 35550834467838722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133324441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66662240 + 66662241.

It is an arithmetic number, because the mean of its divisors is an integer number (66662241).

Almost surely, 2^133324481 is an apocalyptic number.

It is an amenable number.

133324481 is a deficient number, since it is larger than the sum of its proper divisors (1).

133324481 is an equidigital number, since it uses as much as digits as its factorization.

133324481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 133324481 is about 11546.6220601525. The cubic root of 133324481 is about 510.8616486346.

The spelling of 133324481 in words is "one hundred thirty-three million, three hundred twenty-four thousand, four hundred eighty-one".