133331001 has 8 divisors (see below), whose sum is σ = 177835680. Its totient is φ = 88856832.

The previous prime is 133330997. The next prime is 133331041. The reversal of 133331001 is 100133331.

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

It is not a de Polignac number, because 133331001 - 2² = 133330997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133331041) 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, 6105 + ... + 17433.

It is an arithmetic number, because the mean of its divisors is an integer number (22229460).

Almost surely, 2^133331001 is an apocalyptic number.

It is an amenable number.

133331001 is a deficient number, since it is larger than the sum of its proper divisors (44504679).

133331001 is a wasteful number, since it uses less digits than its factorization.

133331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15255.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 133331001 is about 11546.9043903550. The cubic root of 133331001 is about 510.8699760966.

Adding to 133331001 its reverse (100133331), we get a palindrome (233464332).

The spelling of 133331001 in words is "one hundred thirty-three million, three hundred thirty-one thousand, one".