2156230 has 16 divisors (see below), whose sum is σ = 3900960. Its totient is φ = 858112.

The previous prime is 2156221. The next prime is 2156251. The reversal of 2156230 is 326512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2156198 and 2156207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151 + ... + 2989.

It is an arithmetic number, because the mean of its divisors is an integer number (243810).

2^2156230 is an apocalyptic number.

2156230 is a deficient number, since it is larger than the sum of its proper divisors (1744730).

2156230 is a wasteful number, since it uses less digits than its factorization.

2156230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2156230 is about 1468.4107054908. The cubic root of 2156230 is about 129.1908318760.

The spelling of 2156230 in words is "two million, one hundred fifty-six thousand, two hundred thirty".