4142057257 has 4 divisors (see below), whose sum is σ = 4460677060. Its totient is φ = 3823437456.

The previous prime is 4142057251. The next prime is 4142057263. The reversal of 4142057257 is 7527502414.

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

It is an interprime number because it is at equal distance from previous prime (4142057251) and next prime (4142057263).

It can be written as a sum of positive squares in 2 ways, for example, as 1605524761 + 2536532496 = 40069^2 + 50364^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142057257 - 2²⁷ = 4007839529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4142057251) 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, 159309882 + ... + 159309907.

It is an arithmetic number, because the mean of its divisors is an integer number (1115169265).

Almost surely, 2^4142057257 is an apocalyptic number.

It is an amenable number.

4142057257 is a deficient number, since it is larger than the sum of its proper divisors (318619803).

4142057257 is a wasteful number, since it uses less digits than its factorization.

4142057257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318619802.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 4142057257 is about 64358.8164667437. The cubic root of 4142057257 is about 1605.9747002492.

The spelling of 4142057257 in words is "four billion, one hundred forty-two million, fifty-seven thousand, two hundred fifty-seven".