33164261 has 4 divisors (see below), whose sum is σ = 35715372. Its totient is φ = 30613152.

The previous prime is 33164239. The next prime is 33164293. The reversal of 33164261 is 16246133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16246133 = 307 ⋅52919.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 26884225 = 2506^2 + 5185^2 .

It is a cyclic number.

It is not a de Polignac number, because 33164261 - 2¹⁰ = 33163237 is a prime.

It is a super-2 number, since 2×33164261² = 2199736415352242, 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 33164261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33164221) 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, 1275536 + ... + 1275561.

It is an arithmetic number, because the mean of its divisors is an integer number (8928843).

Almost surely, 2^33164261 is an apocalyptic number.

It is an amenable number.

33164261 is a deficient number, since it is larger than the sum of its proper divisors (2551111).

33164261 is a wasteful number, since it uses less digits than its factorization.

33164261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551110.

The product of its digits is 2592, while the sum is 26.

The square root of 33164261 is about 5758.8419842882. The cubic root of 33164261 is about 321.2847471588.

The spelling of 33164261 in words is "thirty-three million, one hundred sixty-four thousand, two hundred sixty-one".