3520531 has 8 divisors (see below), whose sum is σ = 4037120. Its totient is φ = 3007368.

The previous prime is 3520519. The next prime is 3520537. The reversal of 3520531 is 1350253.

3520531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3520531 is a nontrivial binomial coefficient, being equal to C(2654, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3520531 - 2⁵ = 3520499 is a prime.

It is a super-2 number, since 2×3520531² = 24788277043922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3520499 and 3520508.

It is not an unprimeable number, because it can be changed into a prime (3520537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 3316.

It is an arithmetic number, because the mean of its divisors is an integer number (504640).

Almost surely, 2^3520531 is an apocalyptic number.

3520531 is the 2653-rd triangular number and also the 1327-th hexagonal number.

3520531 is the 885-th centered nonagonal number.

3520531 is a deficient number, since it is larger than the sum of its proper divisors (516589).

3520531 is a wasteful number, since it uses less digits than its factorization.

3520531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 3520531 is about 1876.3078105684. The cubic root of 3520531 is about 152.1257471661.

Adding to 3520531 its reverse (1350253), we get a palindrome (4870784).

The spelling of 3520531 in words is "three million, five hundred twenty thousand, five hundred thirty-one".