2151834 has 32 divisors (see below), whose sum is σ = 4644864. Its totient is φ = 662640.

The previous prime is 2151827. The next prime is 2151847. The reversal of 2151834 is 4381512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4027 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2^2151834 is an apocalyptic number.

2151834 is an abundant number, since it is smaller than the sum of its proper divisors (2493030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151834 is a wasteful number, since it uses less digits than its factorization.

2151834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562.

The product of its digits is 960, while the sum is 24.

The square root of 2151834 is about 1466.9130853599. The cubic root of 2151834 is about 129.1029764858.

The spelling of 2151834 in words is "two million, one hundred fifty-one thousand, eight hundred thirty-four".