133334665 has 8 divisors (see below), whose sum is σ = 163904328. Its totient is φ = 104065920.

The previous prime is 133334659. The next prime is 133334671. The reversal of 133334665 is 566433331.

It is an interprime number because it is at equal distance from previous prime (133334659) and next prime (133334671).

It can be written as a sum of positive squares in 4 ways, for example, as 900601 + 132434064 = 949^2 + 11508^2 .

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

It is not a de Polignac number, because 133334665 - 2²³ = 124946057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133334665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325002 + ... + 325411.

It is an arithmetic number, because the mean of its divisors is an integer number (20488041).

Almost surely, 2^133334665 is an apocalyptic number.

It is an amenable number.

133334665 is a deficient number, since it is larger than the sum of its proper divisors (30569663).

133334665 is an equidigital number, since it uses as much as digits as its factorization.

133334665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650459.

The product of its digits is 58320, while the sum is 34.

The square root of 133334665 is about 11547.0630465067. The cubic root of 133334665 is about 510.8746557046.

Adding to 133334665 its reverse (566433331), we get a palindrome (699767996).

The spelling of 133334665 in words is "one hundred thirty-three million, three hundred thirty-four thousand, six hundred sixty-five".