2115635 has 4 divisors (see below), whose sum is σ = 2538768. Its totient is φ = 1692504.

The previous prime is 2115629. The next prime is 2115653. The reversal of 2115635 is 5365112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115635 - 2⁶ = 2115571 is a prime.

It is a super-2 number, since 2×2115635² = 8951822906450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115635.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211559 + ... + 211568.

It is an arithmetic number, because the mean of its divisors is an integer number (634692).

2^2115635 is an apocalyptic number.

2115635 is a deficient number, since it is larger than the sum of its proper divisors (423133).

2115635 is an equidigital number, since it uses as much as digits as its factorization.

2115635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423132.

The product of its digits is 900, while the sum is 23.

The square root of 2115635 is about 1454.5222583378. The cubic root of 2115635 is about 128.3749382543.

The spelling of 2115635 in words is "two million, one hundred fifteen thousand, six hundred thirty-five".