33156041 has 4 divisors (see below), whose sum is σ = 34597632. Its totient is φ = 31714452.

The previous prime is 33156031. The next prime is 33156043. The reversal of 33156041 is 14065133.

It is a happy number.

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: 14065133 = 647 ⋅21739.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33156041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1441567 = 33156041 / (3 + 3 + 1 + 5 + 6 + 0 + 4 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33155998 and 33156016.

It is not an unprimeable number, because it can be changed into a prime (33156043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720761 + ... + 720806.

It is an arithmetic number, because the mean of its divisors is an integer number (8649408).

Almost surely, 2^33156041 is an apocalyptic number.

It is an amenable number.

33156041 is a deficient number, since it is larger than the sum of its proper divisors (1441591).

33156041 is a wasteful number, since it uses less digits than its factorization.

33156041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441590.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 33156041 is about 5758.1282549106. The cubic root of 33156041 is about 321.2582007223.

The spelling of 33156041 in words is "thirty-three million, one hundred fifty-six thousand, forty-one".