2145574 has 8 divisors (see below), whose sum is σ = 3236688. Its totient is φ = 1066680.

The previous prime is 2145551. The next prime is 2145617. The reversal of 2145574 is 4755412.

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

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, 2602 + ... + 3325.

It is an arithmetic number, because the mean of its divisors is an integer number (404586).

2^2145574 is an apocalyptic number.

2145574 is a deficient number, since it is larger than the sum of its proper divisors (1091114).

2145574 is a wasteful number, since it uses less digits than its factorization.

2145574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its digits is 5600, while the sum is 28.

The square root of 2145574 is about 1464.7777988487. Note that the first 4 decimals coincide. The cubic root of 2145574 is about 128.9776617371.

The spelling of 2145574 in words is "two million, one hundred forty-five thousand, five hundred seventy-four".