133534331 has 8 divisors (see below), whose sum is σ = 152680704. Its totient is φ = 114405480.

The previous prime is 133534321. The next prime is 133534333. The reversal of 133534331 is 133435331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133534331 - 2¹⁰ = 133533307 is a prime.

It is a super-2 number, since 2×133534331² = 35662835111235122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133534331.

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 7 ways as a sum of consecutive naturals, for example, 26306 + ... + 30968.

It is an arithmetic number, because the mean of its divisors is an integer number (19085088).

Almost surely, 2^133534331 is an apocalyptic number.

133534331 is a deficient number, since it is larger than the sum of its proper divisors (19146373).

133534331 is an equidigital number, since it uses as much as digits as its factorization.

133534331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761.

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

The square root of 133534331 is about 11555.7055604580. The cubic root of 133534331 is about 511.1295367211.

Adding to 133534331 its reverse (133435331), we get a palindrome (266969662).

The spelling of 133534331 in words is "one hundred thirty-three million, five hundred thirty-four thousand, three hundred thirty-one".