133465983 has 8 divisors (see below), whose sum is σ = 203376768. Its totient is φ = 76266264.

The previous prime is 133465979. The next prime is 133466027. The reversal of 133465983 is 389564331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133465983 - 2² = 133465979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133465903) 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 7 ways as a sum of consecutive naturals, for example, 3177741 + ... + 3177782.

It is an arithmetic number, because the mean of its divisors is an integer number (25422096).

Almost surely, 2^133465983 is an apocalyptic number.

133465983 is a deficient number, since it is larger than the sum of its proper divisors (69910785).

133465983 is an equidigital number, since it uses as much as digits as its factorization.

133465983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355533.

The product of its digits is 233280, while the sum is 42.

The square root of 133465983 is about 11552.7478549478. The cubic root of 133465983 is about 511.0423165950.

The spelling of 133465983 in words is "one hundred thirty-three million, four hundred sixty-five thousand, nine hundred eighty-three".