133220753 has 2 divisors, whose sum is σ = 133220754. Its totient is φ = 133220752.

The previous prime is 133220741. The next prime is 133220771. The reversal of 133220753 is 357022331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103876864 + 29343889 = 10192^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 133220753 - 2¹⁴ = 133204369 is a prime.

It is a super-3 number, since 3×133220753³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (133220713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66610376 + 66610377.

It is an arithmetic number, because the mean of its divisors is an integer number (66610377).

Almost surely, 2^133220753 is an apocalyptic number.

It is an amenable number.

133220753 is a deficient number, since it is larger than the sum of its proper divisors (1).

133220753 is an equidigital number, since it uses as much as digits as its factorization.

133220753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 133220753 is about 11542.1294828987. The cubic root of 133220753 is about 510.7291288226.

The spelling of 133220753 in words is "one hundred thirty-three million, two hundred twenty thousand, seven hundred fifty-three".