214157 has 4 divisors (see below), whose sum is σ = 215136. Its totient is φ = 213180.

The previous prime is 214147. The next prime is 214163. The reversal of 214157 is 751412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 214157 - 2⁴ = 214141 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 11 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214147) 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, 8 + ... + 654.

It is an arithmetic number, because the mean of its divisors is an integer number (53784).

2²¹⁴¹⁵⁷ is an apocalyptic number.

It is an amenable number.

214157 is a deficient number, since it is larger than the sum of its proper divisors (979).

214157 is an equidigital number, since it uses as much as digits as its factorization.

214157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978.

The product of its digits is 280, while the sum is 20.

The square root of 214157 is about 462.7710016844. The cubic root of 214157 is about 59.8288641915.

Adding to 214157 its reverse (751412), we get a palindrome (965569).

The spelling of 214157 in words is "two hundred fourteen thousand, one hundred fifty-seven".