133333763 has 4 divisors (see below), whose sum is σ = 136585848. Its totient is φ = 130081680.

The previous prime is 133333727. The next prime is 133333777. The reversal of 133333763 is 367333331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133333763 - 2¹⁰ = 133332739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133333063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625981 + ... + 1626062.

It is an arithmetic number, because the mean of its divisors is an integer number (34146462).

Almost surely, 2^133333763 is an apocalyptic number.

133333763 is a deficient number, since it is larger than the sum of its proper divisors (3252085).

133333763 is an equidigital number, since it uses as much as digits as its factorization.

133333763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252084.

The product of its digits is 30618, while the sum is 32.

The square root of 133333763 is about 11547.0239888900. The cubic root of 133333763 is about 510.8735036911.

The spelling of 133333763 in words is "one hundred thirty-three million, three hundred thirty-three thousand, seven hundred sixty-three".