133534313 has 4 divisors (see below), whose sum is σ = 145673808. Its totient is φ = 121394820.

The previous prime is 133534279. The next prime is 133534321. The reversal of 133534313 is 313435331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313435331 = 11 ⋅28494121.

It is a cyclic number.

It is not a de Polignac number, because 133534313 - 2⁶ = 133534249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133534333) 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, 6069731 + ... + 6069752.

It is an arithmetic number, because the mean of its divisors is an integer number (36418452).

Almost surely, 2^133534313 is an apocalyptic number.

It is an amenable number.

133534313 is a deficient number, since it is larger than the sum of its proper divisors (12139495).

133534313 is a wasteful number, since it uses less digits than its factorization.

133534313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139494.

The product of its digits is 4860, while the sum is 26.

The square root of 133534313 is about 11555.7047816219. The cubic root of 133534313 is about 511.1295137549.

Adding to 133534313 its reverse (313435331), we get a palindrome (446969644).

The spelling of 133534313 in words is "one hundred thirty-three million, five hundred thirty-four thousand, three hundred thirteen".