2135562085 has 4 divisors (see below), whose sum is σ = 2562674508. Its totient is φ = 1708449664.

The previous prime is 2135562073. The next prime is 2135562097. The reversal of 2135562085 is 5802655312.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2135562073) and next prime (2135562097).

It can be written as a sum of positive squares in 2 ways, for example, as 1078596964 + 1056965121 = 32842^2 + 32511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2135562085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213556204 + ... + 213556213.

It is an arithmetic number, because the mean of its divisors is an integer number (640668627).

Almost surely, 2^2135562085 is an apocalyptic number.

It is an amenable number.

2135562085 is a deficient number, since it is larger than the sum of its proper divisors (427112423).

2135562085 is an equidigital number, since it uses as much as digits as its factorization.

2135562085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427112422.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 2135562085 is about 46212.1421814657. The cubic root of 2135562085 is about 1287.7673226302.

The spelling of 2135562085 in words is "two billion, one hundred thirty-five million, five hundred sixty-two thousand, eighty-five".