3521045 has 8 divisors (see below), whose sum is σ = 4609440. Its totient is φ = 2560720.

The previous prime is 3521033. The next prime is 3521053. The reversal of 3521045 is 5401253.

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

It is not a de Polignac number, because 3521045 - 2⁴ = 3521029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31955 + ... + 32064.

It is an arithmetic number, because the mean of its divisors is an integer number (576180).

Almost surely, 2^3521045 is an apocalyptic number.

It is an amenable number.

3521045 is a deficient number, since it is larger than the sum of its proper divisors (1088395).

3521045 is a wasteful number, since it uses less digits than its factorization.

3521045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64035.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3521045 is about 1876.4447766987. Note that the first 3 decimals coincide. The cubic root of 3521045 is about 152.1331502945.

Adding to 3521045 its reverse (5401253), we get a palindrome (8922298).

The spelling of 3521045 in words is "three million, five hundred twenty-one thousand, forty-five".