3505121 has 8 divisors (see below), whose sum is σ = 3661224. Its totient is φ = 3352320.

The previous prime is 3505109. The next prime is 3505123. The reversal of 3505121 is 1215053.

It can be written as a sum of positive squares in 4 ways, for example, as 26896 + 3478225 = 164^2 + 1865^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3505121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3505121.

It is not an unprimeable number, because it can be changed into a prime (3505123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481 + ... + 3033.

It is an arithmetic number, because the mean of its divisors is an integer number (457653).

Almost surely, 2^3505121 is an apocalyptic number.

It is an amenable number.

3505121 is a deficient number, since it is larger than the sum of its proper divisors (156103).

3505121 is a wasteful number, since it uses less digits than its factorization.

3505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 3505121 is about 1872.1968379420. The cubic root of 3505121 is about 151.9034618992.

The spelling of 3505121 in words is "three million, five hundred five thousand, one hundred twenty-one".