133215343 has 4 divisors (see below), whose sum is σ = 136049760. Its totient is φ = 130380928.

The previous prime is 133215337. The next prime is 133215347. The reversal of 133215343 is 343512331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343512331 = 47 ⋅7308773.

It is a cyclic number.

It is not a de Polignac number, because 133215343 - 2⁵ = 133215311 is a prime.

It is a super-2 number, since 2×133215343² = 35492655221215298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133215347) 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 3 ways as a sum of consecutive naturals, for example, 1417138 + ... + 1417231.

It is an arithmetic number, because the mean of its divisors is an integer number (34012440).

Almost surely, 2^133215343 is an apocalyptic number.

133215343 is a deficient number, since it is larger than the sum of its proper divisors (2834417).

133215343 is an equidigital number, since it uses as much as digits as its factorization.

133215343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834416.

The product of its digits is 3240, while the sum is 25.

The square root of 133215343 is about 11541.8951216860. The cubic root of 133215343 is about 510.7222152801.

Adding to 133215343 its reverse (343512331), we get a palindrome (476727674).

The spelling of 133215343 in words is "one hundred thirty-three million, two hundred fifteen thousand, three hundred forty-three".