2245142 has 4 divisors (see below), whose sum is σ = 3367716. Its totient is φ = 1122570.

The previous prime is 2245141. The next prime is 2245147. The reversal of 2245142 is 2415422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 4² + 5 + 1 + 4⁷ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561284 + ... + 561287.

It is an arithmetic number, because the mean of its divisors is an integer number (841929).

2^2245142 is an apocalyptic number.

2245142 is a deficient number, since it is larger than the sum of its proper divisors (1122574).

2245142 is a wasteful number, since it uses less digits than its factorization.

2245142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122573.

The product of its digits is 640, while the sum is 20.

The square root of 2245142 is about 1498.3797916416. The cubic root of 2245142 is about 130.9426938908.

The spelling of 2245142 in words is "two million, two hundred forty-five thousand, one hundred forty-two".