2145452 has 12 divisors (see below), whose sum is σ = 3764880. Its totient is φ = 1069776.

The previous prime is 2145443. The next prime is 2145469. The reversal of 2145452 is 2545412.

It is a happy number.

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

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, 2174 + ... + 3002.

It is an arithmetic number, because the mean of its divisors is an integer number (313740).

2^2145452 is an apocalyptic number.

It is an amenable number.

2145452 is a deficient number, since it is larger than the sum of its proper divisors (1619428).

2145452 is a wasteful number, since it uses less digits than its factorization.

2145452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1478 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 2145452 is about 1464.7361537151. The cubic root of 2145452 is about 128.9752170808.

The spelling of 2145452 in words is "two million, one hundred forty-five thousand, four hundred fifty-two".