133755763 has 4 divisors (see below), whose sum is σ = 140795560. Its totient is φ = 126715968.

The previous prime is 133755761. The next prime is 133755799. The reversal of 133755763 is 367557331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 367557331 = 457 ⋅804283.

It is a cyclic number.

It is not a de Polignac number, because 133755763 - 2¹ = 133755761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133755761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519870 + ... + 3519907.

It is an arithmetic number, because the mean of its divisors is an integer number (35198890).

Almost surely, 2^133755763 is an apocalyptic number.

133755763 is a deficient number, since it is larger than the sum of its proper divisors (7039797).

133755763 is an equidigital number, since it uses as much as digits as its factorization.

133755763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039796.

The product of its digits is 198450, while the sum is 40.

The square root of 133755763 is about 11565.2826597537. The cubic root of 133755763 is about 511.4119058871.

The spelling of 133755763 in words is "one hundred thirty-three million, seven hundred fifty-five thousand, seven hundred sixty-three".