226157 has 4 divisors (see below), whose sum is σ = 238080. Its totient is φ = 214236.

The previous prime is 226141. The next prime is 226169. The reversal of 226157 is 751622.

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.

It is a cyclic number.

It is not a de Polignac number, because 226157 - 2⁴ = 226141 is a prime.

It is a super-2 number, since 2×226157² = 102293977298, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226357) 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, 5933 + ... + 5970.

It is an arithmetic number, because the mean of its divisors is an integer number (59520).

2²²⁶¹⁵⁷ is an apocalyptic number.

It is an amenable number.

226157 is a deficient number, since it is larger than the sum of its proper divisors (11923).

226157 is a wasteful number, since it uses less digits than its factorization.

226157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922.

The product of its digits is 840, while the sum is 23.

The square root of 226157 is about 475.5596702833. The cubic root of 226157 is about 60.9260952139.

Adding to 226157 its reverse (751622), we get a palindrome (977779).

It can be divided in two parts, 22615 and 7, that added together give a palindrome (22622).

The spelling of 226157 in words is "two hundred twenty-six thousand, one hundred fifty-seven".