33161201 has 2 divisors, whose sum is σ = 33161202. Its totient is φ = 33161200.

The previous prime is 33161197. The next prime is 33161231. The reversal of 33161201 is 10216133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 9928801 = 4820^2 + 3151^2 .

It is a cyclic number.

It is not a de Polignac number, because 33161201 - 2² = 33161197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33161201.

It is not a weakly prime, because it can be changed into another prime (33161231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16580600 + 16580601.

It is an arithmetic number, because the mean of its divisors is an integer number (16580601).

Almost surely, 2^33161201 is an apocalyptic number.

It is an amenable number.

33161201 is a deficient number, since it is larger than the sum of its proper divisors (1).

33161201 is an equidigital number, since it uses as much as digits as its factorization.

33161201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 33161201 is about 5758.5762997463. The cubic root of 33161201 is about 321.2748654213.

Adding to 33161201 its reverse (10216133), we get a palindrome (43377334).

The spelling of 33161201 in words is "thirty-three million, one hundred sixty-one thousand, two hundred one".