3552181 has 4 divisors (see below), whose sum is σ = 3674700. Its totient is φ = 3429664.

The previous prime is 3552179. The next prime is 3552203. The reversal of 3552181 is 1812553.

It is a happy number.

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 2353156 + 1199025 = 1534^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 3552181 - 2¹ = 3552179 is a prime.

It is a super-2 number, since 2×3552181² = 25235979713522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3552781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61216 + ... + 61273.

It is an arithmetic number, because the mean of its divisors is an integer number (918675).

Almost surely, 2^3552181 is an apocalyptic number.

It is an amenable number.

3552181 is a deficient number, since it is larger than the sum of its proper divisors (122519).

3552181 is a wasteful number, since it uses less digits than its factorization.

3552181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122518.

The product of its digits is 1200, while the sum is 25.

The square root of 3552181 is about 1884.7230565789. The cubic root of 3552181 is about 152.5802641171.

The spelling of 3552181 in words is "three million, five hundred fifty-two thousand, one hundred eighty-one".