1965535 has 16 divisors (see below), whose sum is σ = 2772000. Its totient is φ = 1319040.

The previous prime is 1965527. The next prime is 1965541. The reversal of 1965535 is 5355691.

1965535 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1965535 - 2³ = 1965527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1965535.

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, 660 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

2^1965535 is an apocalyptic number.

1965535 is a deficient number, since it is larger than the sum of its proper divisors (806465).

1965535 is a wasteful number, since it uses less digits than its factorization.

1965535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778.

The product of its digits is 20250, while the sum is 34.

The square root of 1965535 is about 1401.9753920808. The cubic root of 1965535 is about 125.2641879113.

It can be divided in two parts, 1965 and 535, that added together give a square (2500 = 50²).

The spelling of 1965535 in words is "one million, nine hundred sixty-five thousand, five hundred thirty-five".