8157214 has 8 divisors (see below), whose sum is σ = 13177080. Its totient is φ = 3764856.

The previous prime is 8157211. The next prime is 8157221. The reversal of 8157214 is 4127518.

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

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156844 + ... + 156895.

It is an arithmetic number, because the mean of its divisors is an integer number (1647135).

Almost surely, 2^8157214 is an apocalyptic number.

8157214 is a deficient number, since it is larger than the sum of its proper divisors (5019866).

8157214 is a wasteful number, since it uses less digits than its factorization.

8157214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313754.

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

The square root of 8157214 is about 2856.0836822474. The cubic root of 8157214 is about 201.3016271237.

The spelling of 8157214 in words is "eight million, one hundred fifty-seven thousand, two hundred fourteen".