4142057 has 4 divisors (see below), whose sum is σ = 4360080. Its totient is φ = 3924036.

The previous prime is 4142053. The next prime is 4142059. The reversal of 4142057 is 7502414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7502414 = 2 ⋅3751207.

It is a cyclic number.

It is not a de Polignac number, because 4142057 - 2² = 4142053 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4142053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108983 + ... + 109020.

It is an arithmetic number, because the mean of its divisors is an integer number (1090020).

Almost surely, 2^4142057 is an apocalyptic number.

It is an amenable number.

4142057 is a deficient number, since it is larger than the sum of its proper divisors (218023).

4142057 is a wasteful number, since it uses less digits than its factorization.

4142057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218022.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4142057 is about 2035.2044123380. The cubic root of 4142057 is about 160.5974667034.

The spelling of 4142057 in words is "four million, one hundred forty-two thousand, fifty-seven".