33011413 has 4 divisors (see below), whose sum is σ = 33314380. Its totient is φ = 32708448.

The previous prime is 33011389. The next prime is 33011441. The reversal of 33011413 is 31411033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31411033 = 53 ⋅592661.

It can be written as a sum of positive squares in 2 ways, for example, as 19158129 + 13853284 = 4377^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 33011413 - 2¹³ = 33003221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33011213) 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, 151320 + ... + 151537.

It is an arithmetic number, because the mean of its divisors is an integer number (8328595).

Almost surely, 2^33011413 is an apocalyptic number.

It is an amenable number.

33011413 is a deficient number, since it is larger than the sum of its proper divisors (302967).

33011413 is a wasteful number, since it uses less digits than its factorization.

33011413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302966.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 33011413 is about 5745.5559348074. Note that the first 3 decimals coincide. The cubic root of 33011413 is about 320.7904061005.

Adding to 33011413 its reverse (31411033), we get a palindrome (64422446).

The spelling of 33011413 in words is "thirty-three million, eleven thousand, four hundred thirteen".