2151836 has 12 divisors (see below), whose sum is σ = 3827880. Its totient is φ = 1058160.

The previous prime is 2151827. The next prime is 2151847. The reversal of 2151836 is 6381512.

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, 4166 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (318990).

2^2151836 is an apocalyptic number.

It is an amenable number.

2151836 is a deficient number, since it is larger than the sum of its proper divisors (1676044).

2151836 is a wasteful number, since it uses less digits than its factorization.

2151836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884 (or 8882 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 2151836 is about 1466.9137670634. The cubic root of 2151836 is about 129.1030164836.

The spelling of 2151836 in words is "two million, one hundred fifty-one thousand, eight hundred thirty-six".