133339997 has 8 divisors (see below), whose sum is σ = 155264256. Its totient is φ = 112134672.

The previous prime is 133339963. The next prime is 133340003. The reversal of 133339997 is 799933331.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 133339997 - 2⁶ = 133339933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133339907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179333 + ... + 180074.

It is an arithmetic number, because the mean of its divisors is an integer number (19408032).

Almost surely, 2^133339997 is an apocalyptic number.

It is an amenable number.

133339997 is a deficient number, since it is larger than the sum of its proper divisors (21924259).

133339997 is an equidigital number, since it uses as much as digits as its factorization.

133339997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359467.

The product of its digits is 413343, while the sum is 47.

The square root of 133339997 is about 11547.2939254182. The cubic root of 133339997 is about 510.8814655050.

The spelling of 133339997 in words is "one hundred thirty-three million, three hundred thirty-nine thousand, nine hundred ninety-seven".