133342001 has 4 divisors (see below), whose sum is σ = 143599092. Its totient is φ = 123084912.

The previous prime is 133341997. The next prime is 133342007. The reversal of 133342001 is 100243331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100243331 = 743 ⋅134917.

It can be written as a sum of positive squares in 2 ways, for example, as 48720400 + 84621601 = 6980^2 + 9199^2 .

It is a cyclic number.

It is not a de Polignac number, because 133342001 - 2² = 133341997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133342007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5128526 + ... + 5128551.

It is an arithmetic number, because the mean of its divisors is an integer number (35899773).

Almost surely, 2^133342001 is an apocalyptic number.

It is an amenable number.

133342001 is a deficient number, since it is larger than the sum of its proper divisors (10257091).

133342001 is a wasteful number, since it uses less digits than its factorization.

133342001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10257090.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133342001 is about 11547.3806986693. The cubic root of 133342001 is about 510.8840248804.

Adding to 133342001 its reverse (100243331), we get a palindrome (233585332).

It can be divided in two parts, 1333 and 42001, that added together give a palindrome (43334).

The spelling of 133342001 in words is "one hundred thirty-three million, three hundred forty-two thousand, one".