133414321 has 4 divisors (see below), whose sum is σ = 133459444. Its totient is φ = 133369200.

The previous prime is 133414319. The next prime is 133414343. The reversal of 133414321 is 123414331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123414331 = 1123 ⋅109897.

It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 127938721 = 2340^2 + 11311^2 .

It is a cyclic number.

It is not a de Polignac number, because 133414321 - 2¹ = 133414319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133414292 and 133414301.

It is not an unprimeable number, because it can be changed into a prime (133414921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17790 + ... + 24151.

It is an arithmetic number, because the mean of its divisors is an integer number (33364861).

Almost surely, 2^133414321 is an apocalyptic number.

It is an amenable number.

133414321 is a deficient number, since it is larger than the sum of its proper divisors (45123).

133414321 is an equidigital number, since it uses as much as digits as its factorization.

133414321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45122.

The product of its digits is 864, while the sum is 22.

The square root of 133414321 is about 11550.5117202659. The cubic root of 133414321 is about 510.9763700150.

Adding to 133414321 its reverse (123414331), we get a palindrome (256828652).

The spelling of 133414321 in words is "one hundred thirty-three million, four hundred fourteen thousand, three hundred twenty-one".