1965265 has 16 divisors (see below), whose sum is σ = 2517120. Its totient is φ = 1468800.

The previous prime is 1965263. The next prime is 1965277. The reversal of 1965265 is 5625691.

It is a happy number.

It is not a de Polignac number, because 1965265 - 2¹ = 1965263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1965265.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12940 + ... + 13090.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

2^1965265 is an apocalyptic number.

It is an amenable number.

1965265 is a deficient number, since it is larger than the sum of its proper divisors (551855).

1965265 is a wasteful number, since it uses less digits than its factorization.

1965265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 16200, while the sum is 34.

The square root of 1965265 is about 1401.8790960707. The cubic root of 1965265 is about 125.2584519192.

The spelling of 1965265 in words is "one million, nine hundred sixty-five thousand, two hundred sixty-five".