8257141 has 4 divisors (see below), whose sum is σ = 8541900. Its totient is φ = 7972384.

The previous prime is 8257057. The next prime is 8257157. The reversal of 8257141 is 1417528.

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 2235025 + 6022116 = 1495^2 + 2454^2 .

It is a cyclic number.

It is not a de Polignac number, because 8257141 - 2⁹ = 8256629 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 (8257841) 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, 142336 + ... + 142393.

It is an arithmetic number, because the mean of its divisors is an integer number (2135475).

Almost surely, 2^8257141 is an apocalyptic number.

It is an amenable number.

8257141 is a deficient number, since it is larger than the sum of its proper divisors (284759).

8257141 is a wasteful number, since it uses less digits than its factorization.

8257141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284758.

The product of its digits is 2240, while the sum is 28.

The square root of 8257141 is about 2873.5241429297. The cubic root of 8257141 is about 202.1202842080.

The spelling of 8257141 in words is "eight million, two hundred fifty-seven thousand, one hundred forty-one".