8157201 has 8 divisors (see below), whose sum is σ = 11712960. Its totient is φ = 5019792.

The previous prime is 8157197. The next prime is 8157211. The reversal of 8157201 is 1027518.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8157201 - 2² = 8157197 is a prime.

8157201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8157211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104541 + ... + 104618.

It is an arithmetic number, because the mean of its divisors is an integer number (1464120).

Almost surely, 2^8157201 is an apocalyptic number.

It is an amenable number.

8157201 is a deficient number, since it is larger than the sum of its proper divisors (3555759).

8157201 is a wasteful number, since it uses less digits than its factorization.

8157201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209175.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 8157201 is about 2856.0814064028. The cubic root of 8157201 is about 201.3015201867.

The spelling of 8157201 in words is "eight million, one hundred fifty-seven thousand, two hundred one".