3245521 has 4 divisors (see below), whose sum is σ = 3436452. Its totient is φ = 3054592.

The previous prime is 3245503. The next prime is 3245537. The reversal of 3245521 is 1255423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 1354896 = 1375^2 + 1164^2 .

It is a cyclic number.

It is not a de Polignac number, because 3245521 - 2⁹ = 3245009 is a prime.

It is a super-2 number, since 2×3245521² = 21066813122882, 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 = 3245492 and 3245501.

It is not an unprimeable number, because it can be changed into a prime (3245551) 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, 95440 + ... + 95473.

It is an arithmetic number, because the mean of its divisors is an integer number (859113).

Almost surely, 2^3245521 is an apocalyptic number.

It is an amenable number.

3245521 is a deficient number, since it is larger than the sum of its proper divisors (190931).

3245521 is a wasteful number, since it uses less digits than its factorization.

3245521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190930.

The product of its digits is 1200, while the sum is 22.

The square root of 3245521 is about 1801.5329583441. The cubic root of 3245521 is about 148.0567258812.

The spelling of 3245521 in words is "three million, two hundred forty-five thousand, five hundred twenty-one".