2145548 has 12 divisors (see below), whose sum is σ = 3771432. Its totient is φ = 1068000.

The previous prime is 2145547. The next prime is 2145551. The reversal of 2145548 is 8455412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145548.

It is not an unprimeable number, because it can be changed into a prime (2145547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (314286).

2^2145548 is an apocalyptic number.

It is an amenable number.

2145548 is a deficient number, since it is larger than the sum of its proper divisors (1625884).

2145548 is a wasteful number, since it uses less digits than its factorization.

2145548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392 (or 2390 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 2145548 is about 1464.7689237556. The cubic root of 2145548 is about 128.9771407525.

The spelling of 2145548 in words is "two million, one hundred forty-five thousand, five hundred forty-eight".