2151835 has 12 divisors (see below), whose sum is σ = 3004128. Its totient is φ = 1475376.

The previous prime is 2151827. The next prime is 2151847. The reversal of 2151835 is 5381512.

It is a happy number.

2151835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151835 - 2³ = 2151827 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4147 + ... + 4636.

It is an arithmetic number, because the mean of its divisors is an integer number (250344).

2^2151835 is an apocalyptic number.

2151835 is a deficient number, since it is larger than the sum of its proper divisors (852293).

2151835 is an equidigital number, since it uses as much as digits as its factorization.

2151835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8802 (or 8795 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 2151835 is about 1466.9134262116. The cubic root of 2151835 is about 129.1029964847.

The spelling of 2151835 in words is "two million, one hundred fifty-one thousand, eight hundred thirty-five".