133163337 has 4 divisors (see below), whose sum is σ = 177551120. Its totient is φ = 88775556.

The previous prime is 133163311. The next prime is 133163341. The reversal of 133163337 is 733361331.

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: 733361331 = 3 ⋅244453777.

It is not a de Polignac number, because 133163337 - 2⁷ = 133163209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133163347) 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, 22193887 + ... + 22193892.

It is an arithmetic number, because the mean of its divisors is an integer number (44387780).

Almost surely, 2^133163337 is an apocalyptic number.

It is an amenable number.

133163337 is a deficient number, since it is larger than the sum of its proper divisors (44387783).

133163337 is an equidigital number, since it uses as much as digits as its factorization.

133163337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44387782.

The product of its digits is 10206, while the sum is 30.

The square root of 133163337 is about 11539.6419788484. The cubic root of 133163337 is about 510.6557462683.

It can be divided in two parts, 13316 and 3337, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 133163337 in words is "one hundred thirty-three million, one hundred sixty-three thousand, three hundred thirty-seven".