2145212 has 12 divisors (see below), whose sum is σ = 3776136. Its totient is φ = 1066320.

The previous prime is 2145197. The next prime is 2145239. The reversal of 2145212 is 2125412.

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

It is a zygodrome in base 3.

It is a congruent number.

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, 758 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (314678).

2^2145212 is an apocalyptic number.

It is an amenable number.

2145212 is a deficient number, since it is larger than the sum of its proper divisors (1630924).

2145212 is a wasteful number, since it uses less digits than its factorization.

2145212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3146 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 2145212 is about 1464.6542254061. The cubic root of 2145212 is about 128.9704076503.

The spelling of 2145212 in words is "two million, one hundred forty-five thousand, two hundred twelve".