4157542 has 16 divisors (see below), whose sum is σ = 6744240. Its totient is φ = 1915488.

The previous prime is 4157513. The next prime is 4157563. The reversal of 4157542 is 2457514.

It is a self number, because there is not a number n which added to its sum of digits gives 4157542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 2884.

It is an arithmetic number, because the mean of its divisors is an integer number (421515).

Almost surely, 2^4157542 is an apocalyptic number.

4157542 is a deficient number, since it is larger than the sum of its proper divisors (2586698).

4157542 is a wasteful number, since it uses less digits than its factorization.

4157542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015.

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

The square root of 4157542 is about 2039.0051495766. The cubic root of 4157542 is about 160.7973480005.

Subtracting from 4157542 its sum of digits (28), we obtain a palindrome (4157514).

The spelling of 4157542 in words is "four million, one hundred fifty-seven thousand, five hundred forty-two".