4522142 has 4 divisors (see below), whose sum is σ = 6783216. Its totient is φ = 2261070.

The previous prime is 4522129. The next prime is 4522157. The reversal of 4522142 is 2412254.

It is a happy number.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 4 + 5² + 2⁷ + 2¹⁸ + 1 + 4⁸ + 2²² .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130534 + ... + 1130537.

It is an arithmetic number, because the mean of its divisors is an integer number (1695804).

Almost surely, 2^4522142 is an apocalyptic number.

4522142 is a deficient number, since it is larger than the sum of its proper divisors (2261074).

4522142 is a wasteful number, since it uses less digits than its factorization.

4522142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261073.

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

The square root of 4522142 is about 2126.5328589044. The cubic root of 4522142 is about 165.3667020245.

Adding to 4522142 its reverse (2412254), we get a palindrome (6934396).

It can be divided in two parts, 4522 and 142, that added together give a palindrome (4664).

The spelling of 4522142 in words is "four million, five hundred twenty-two thousand, one hundred forty-two".