4142542 has 4 divisors (see below), whose sum is σ = 6213816. Its totient is φ = 2071270.

The previous prime is 4142521. The next prime is 4142569. The reversal of 4142542 is 2452414.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1035634 + ... + 1035637.

It is an arithmetic number, because the mean of its divisors is an integer number (1553454).

Almost surely, 2^4142542 is an apocalyptic number.

4142542 is a deficient number, since it is larger than the sum of its proper divisors (2071274).

4142542 is a wasteful number, since it uses less digits than its factorization.

4142542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071273.

The product of its digits is 1280, while the sum is 22.

The square root of 4142542 is about 2035.3235615007. The cubic root of 4142542 is about 160.6037346625.

Adding to 4142542 its reverse (2452414), we get a palindrome (6594956).

The spelling of 4142542 in words is "four million, one hundred forty-two thousand, five hundred forty-two".