33161601 has 16 divisors (see below), whose sum is σ = 48489408. Its totient is φ = 19992000.

The previous prime is 33161591. The next prime is 33161603. The reversal of 33161601 is 10616133.

It is not a de Polignac number, because 33161601 - 2¹⁰ = 33160577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33161603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3951 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (3030588).

Almost surely, 2^33161601 is an apocalyptic number.

It is an amenable number.

33161601 is a deficient number, since it is larger than the sum of its proper divisors (15327807).

33161601 is a wasteful number, since it uses less digits than its factorization.

33161601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 33161601 is about 5758.6110304482. The cubic root of 33161601 is about 321.2761571862.

Adding to 33161601 its reverse (10616133), we get a palindrome (43777734).

The spelling of 33161601 in words is "thirty-three million, one hundred sixty-one thousand, six hundred one".