4157071 has 4 divisors (see below), whose sum is σ = 4162752. Its totient is φ = 4151392.

The previous prime is 4157053. The next prime is 4157077. The reversal of 4157071 is 1707514.

4157071 is nontrivially palindromic in base 9.

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 4157071 - 2¹⁵ = 4124303 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 (4157077) 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, 1546 + ... + 3271.

It is an arithmetic number, because the mean of its divisors is an integer number (1040688).

Almost surely, 2^4157071 is an apocalyptic number.

4157071 is a deficient number, since it is larger than the sum of its proper divisors (5681).

4157071 is an equidigital number, since it uses as much as digits as its factorization.

4157071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 4157071 is about 2038.8896488040. The cubic root of 4157071 is about 160.7912756296.

The spelling of 4157071 in words is "four million, one hundred fifty-seven thousand, seventy-one".