133420753 has 2 divisors, whose sum is σ = 133420754. Its totient is φ = 133420752.

The previous prime is 133420751. The next prime is 133420759. The reversal of 133420753 is 357024331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83393424 + 50027329 = 9132^2 + 7073^2 .

It is a cyclic number.

It is not a de Polignac number, because 133420753 - 2¹ = 133420751 is a prime.

It is a super-3 number, since 3×133420753³ (a number of 25 digits) contains 333 as substring.

Together with 133420751, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133420751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66710376 + 66710377.

It is an arithmetic number, because the mean of its divisors is an integer number (66710377).

Almost surely, 2^133420753 is an apocalyptic number.

It is an amenable number.

133420753 is a deficient number, since it is larger than the sum of its proper divisors (1).

133420753 is an equidigital number, since it uses as much as digits as its factorization.

133420753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 133420753 is about 11550.7901461329. The cubic root of 133420753 is about 510.9845813953.

The spelling of 133420753 in words is "one hundred thirty-three million, four hundred twenty thousand, seven hundred fifty-three".