133314021 has 6 divisors (see below), whose sum is σ = 192564710. Its totient is φ = 88876008.

The previous prime is 133313993. The next prime is 133314029. The reversal of 133314021 is 120413331.

It can be written as a sum of positive squares in only one way, i.e., 112656996 + 20657025 = 10614^2 + 4545^2 .

It is not a de Polignac number, because 133314021 - 2⁷ = 133313893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133313985 and 133314003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133314029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7406326 + ... + 7406343.

Almost surely, 2^133314021 is an apocalyptic number.

It is an amenable number.

133314021 is a deficient number, since it is larger than the sum of its proper divisors (59250689).

133314021 is a wasteful number, since it uses less digits than its factorization.

133314021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14812675 (or 14812672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 133314021 is about 11546.1691049456. The cubic root of 133314021 is about 510.8482883661.

Adding to 133314021 its reverse (120413331), we get a palindrome (253727352).

The spelling of 133314021 in words is "one hundred thirty-three million, three hundred fourteen thousand, twenty-one".