3555145 has 16 divisors (see below), whose sum is σ = 4782528. Its totient is φ = 2514240.

The previous prime is 3555143. The next prime is 3555157. The reversal of 3555145 is 5415553.

3555145 = T₁₁₉₀ + T₁₁₉₁ + ... + T₁₁₉₄.

It is not a de Polignac number, because 3555145 - 2¹ = 3555143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3555143) 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 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (298908).

Almost surely, 2^3555145 is an apocalyptic number.

It is an amenable number.

3555145 is a deficient number, since it is larger than the sum of its proper divisors (1227383).

3555145 is a wasteful number, since it uses less digits than its factorization.

3555145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its digits is 7500, while the sum is 28.

The square root of 3555145 is about 1885.5092150398. The cubic root of 3555145 is about 152.6226908378.

The spelling of 3555145 in words is "three million, five hundred fifty-five thousand, one hundred forty-five".