2179245 has 8 divisors (see below), whose sum is σ = 3486816. Its totient is φ = 1162256.

The previous prime is 2179241. The next prime is 2179253. The reversal of 2179245 is 5429712.

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

It is a cyclic number.

It is not a de Polignac number, because 2179245 - 2² = 2179241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179241) 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, 72627 + ... + 72656.

It is an arithmetic number, because the mean of its divisors is an integer number (435852).

2^2179245 is an apocalyptic number.

It is an amenable number.

2179245 is a deficient number, since it is larger than the sum of its proper divisors (1307571).

2179245 is a wasteful number, since it uses less digits than its factorization.

2179245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145291.

The product of its digits is 5040, while the sum is 30.

The square root of 2179245 is about 1476.2266086208. The cubic root of 2179245 is about 129.6488551329.

The spelling of 2179245 in words is "two million, one hundred seventy-nine thousand, two hundred forty-five".