4042051 has 4 divisors (see below), whose sum is σ = 4352992. Its totient is φ = 3731112.

The previous prime is 4042037. The next prime is 4042057. The reversal of 4042051 is 1502404.

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

It is a cyclic number.

It is not a de Polignac number, because 4042051 - 2⁵ = 4042019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 155451 + ... + 155476.

It is an arithmetic number, because the mean of its divisors is an integer number (1088248).

Almost surely, 2^4042051 is an apocalyptic number.

4042051 is a deficient number, since it is larger than the sum of its proper divisors (310941).

4042051 is a wasteful number, since it uses less digits than its factorization.

4042051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310940.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4042051 is about 2010.4852648055. The cubic root of 4042051 is about 159.2944322243.

Adding to 4042051 its reverse (1502404), we get a palindrome (5544455).

The spelling of 4042051 in words is "four million, forty-two thousand, fifty-one".