2135365 has 4 divisors (see below), whose sum is σ = 2562444. Its totient is φ = 1708288.

The previous prime is 2135347. The next prime is 2135369. The reversal of 2135365 is 5635312.

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 1444804 + 690561 = 1202^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135365 - 2⁵ = 2135333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213532 + ... + 213541.

It is an arithmetic number, because the mean of its divisors is an integer number (640611).

2^2135365 is an apocalyptic number.

It is an amenable number.

2135365 is a deficient number, since it is larger than the sum of its proper divisors (427079).

2135365 is an equidigital number, since it uses as much as digits as its factorization.

2135365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427078.

The product of its digits is 2700, while the sum is 25.

The square root of 2135365 is about 1461.2888147112. The cubic root of 2135365 is about 128.7727706607.

It can be divided in two parts, 2135 and 365, that added together give a square (2500 = 50²).

The spelling of 2135365 in words is "two million, one hundred thirty-five thousand, three hundred sixty-five".