4013533 has 4 divisors (see below), whose sum is σ = 4017568. Its totient is φ = 4009500.

The previous prime is 4013521. The next prime is 4013543. The reversal of 4013533 is 3353104.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4013533 - 2⁹ = 4013021 is a prime.

It is a super-2 number, since 2×4013533² = 32216894284178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4013533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013543) 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, 658 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (1004392).

Almost surely, 2^4013533 is an apocalyptic number.

It is an amenable number.

4013533 is a deficient number, since it is larger than the sum of its proper divisors (4035).

4013533 is a wasteful number, since it uses less digits than its factorization.

4013533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 4013533 is about 2003.3803932354. The cubic root of 4013533 is about 158.9189228402.

Adding to 4013533 its reverse (3353104), we get a palindrome (7366637).

It can be divided in two parts, 40 and 13533, that multiplied together give a triangular number (541320 = T₁₀₄₀).

The spelling of 4013533 in words is "four million, thirteen thousand, five hundred thirty-three".