4057157 has 4 divisors (see below), whose sum is σ = 4369260. Its totient is φ = 3745056.

The previous prime is 4057147. The next prime is 4057159. The reversal of 4057157 is 7517504.

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

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 3500641 = 746^2 + 1871^2 .

It is a cyclic number.

It is not a de Polignac number, because 4057157 - 2¹⁸ = 3795013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057159) 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, 156032 + ... + 156057.

It is an arithmetic number, because the mean of its divisors is an integer number (1092315).

Almost surely, 2^4057157 is an apocalyptic number.

It is an amenable number.

4057157 is a deficient number, since it is larger than the sum of its proper divisors (312103).

4057157 is a wasteful number, since it uses less digits than its factorization.

4057157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312102.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 4057157 is about 2014.2385658109. The cubic root of 4057157 is about 159.4926245349.

The spelling of 4057157 in words is "four million, fifty-seven thousand, one hundred fifty-seven".