3550121 has 8 divisors (see below), whose sum is σ = 3632040. Its totient is φ = 3469312.

The previous prime is 3550111. The next prime is 3550163. The reversal of 3550121 is 1210553.

3550121 = T₁₀₄ + T₁₀₅ + ... + T₂₈₁.

It can be written as a sum of positive squares in 4 ways, for example, as 75625 + 3474496 = 275^2 + 1864^2 .

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-3550121 is a prime.

It is a super-2 number, since 2×3550121² = 25206718229282, 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 3550121.

It is not an unprimeable number, because it can be changed into a prime (3550111) 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, 9881 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (454005).

Almost surely, 2^3550121 is an apocalyptic number.

It is an amenable number.

3550121 is a deficient number, since it is larger than the sum of its proper divisors (81919).

3550121 is a wasteful number, since it uses less digits than its factorization.

3550121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

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

The square root of 3550121 is about 1884.1764779341. The cubic root of 3550121 is about 152.5507633565.

Adding to 3550121 its reverse (1210553), we get a palindrome (4760674).

The spelling of 3550121 in words is "three million, five hundred fifty thousand, one hundred twenty-one".