216157 has 2 divisors, whose sum is σ = 216158. Its totient is φ = 216156.

The previous prime is 216149. The next prime is 216173. The reversal of 216157 is 751612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210681 + 5476 = 459^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 216157 - 2³ = 216149 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108078 + 108079.

It is an arithmetic number, because the mean of its divisors is an integer number (108079).

2²¹⁶¹⁵⁷ is an apocalyptic number.

It is an amenable number.

216157 is a deficient number, since it is larger than the sum of its proper divisors (1).

216157 is an equidigital number, since it uses as much as digits as its factorization.

216157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 216157 is about 464.9268759708. The cubic root of 216157 is about 60.0145335164.

Adding to 216157 its reverse (751612), we get a palindrome (967769).

It can be divided in two parts, 216 and 157, that added together give a palindrome (373).

The spelling of 216157 in words is "two hundred sixteen thousand, one hundred fifty-seven".