2145535 has 16 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 1444896.

The previous prime is 2145529. The next prime is 2145547. The reversal of 2145535 is 5355412.

It is a cyclic number.

It is not a de Polignac number, because 2145535 - 2⁹ = 2145023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (187200).

2^2145535 is an apocalyptic number.

2145535 is a deficient number, since it is larger than the sum of its proper divisors (849665).

2145535 is a wasteful number, since it uses less digits than its factorization.

2145535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

The product of its digits is 3000, while the sum is 25.

The square root of 2145535 is about 1464.7644861888. The cubic root of 2145535 is about 128.9768802586.

It can be divided in two parts, 21455 and 35, that multiplied together give a triangular number (750925 = T₁₂₂₅).

The spelling of 2145535 in words is "two million, one hundred forty-five thousand, five hundred thirty-five".