2145230 has 16 divisors (see below), whose sum is σ = 4088880. Its totient is φ = 807552.

The previous prime is 2145197. The next prime is 2145239. The reversal of 2145230 is 325412.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 12.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 2145199 and 2145208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6140 + ... + 6479.

It is an arithmetic number, because the mean of its divisors is an integer number (255555).

2^2145230 is an apocalyptic number.

2145230 is a deficient number, since it is larger than the sum of its proper divisors (1943650).

2145230 is a wasteful number, since it uses less digits than its factorization.

2145230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12643.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2145230 is about 1464.6603701883. The cubic root of 2145230 is about 128.9707683701.

The spelling of 2145230 in words is "two million, one hundred forty-five thousand, two hundred thirty".