33161001 has 4 divisors (see below), whose sum is σ = 44214672. Its totient is φ = 22107332.

The previous prime is 33160973. The next prime is 33161021. The reversal of 33161001 is 10016133.

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.

It is a cyclic number.

It is not a de Polignac number, because 33161001 - 2⁶ = 33160937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33161021) 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, 5526831 + ... + 5526836.

It is an arithmetic number, because the mean of its divisors is an integer number (11053668).

Almost surely, 2^33161001 is an apocalyptic number.

It is an amenable number.

33161001 is a deficient number, since it is larger than the sum of its proper divisors (11053671).

33161001 is a wasteful number, since it uses less digits than its factorization.

33161001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053670.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 33161001 is about 5758.5589343168. The cubic root of 33161001 is about 321.2742195349.

Adding to 33161001 its reverse (10016133), we get a palindrome (43177134).

The spelling of 33161001 in words is "thirty-three million, one hundred sixty-one thousand, one".