2157234 has 8 divisors (see below), whose sum is σ = 4314480. Its totient is φ = 719076.

The previous prime is 2157229. The next prime is 2157247. The reversal of 2157234 is 4327512.

It is a sphenic number, since it is the product of 3 distinct primes.

2157234 is an admirable number.

It is a d-powerful number, because it can be written as 2²⁰ + 1 + 5⁴ + 7³ + 2²⁰ + 3¹⁰ + 4³ .

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, 179764 + ... + 179775.

It is an arithmetic number, because the mean of its divisors is an integer number (539310).

2^2157234 is an apocalyptic number.

2157234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2157234 is a wasteful number, since it uses less digits than its factorization.

2157234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359544.

The product of its digits is 1680, while the sum is 24.

The square root of 2157234 is about 1468.7525319127. The cubic root of 2157234 is about 129.2108803663.

The spelling of 2157234 in words is "two million, one hundred fifty-seven thousand, two hundred thirty-four".