226156362481 has 27 divisors (see below), whose sum is σ = 269815767777. Its totient is φ = 189006168960.

The previous prime is 226156362469. The next prime is 226156362491. The reversal of 226156362481 is 184263651622.

It is a happy number.

The square root of 226156362481 is 475559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 105063498225 + 121092864256 = 324135^2 + 347984^2 .

It is not a de Polignac number, because 226156362481 - 2¹⁵ = 226156329713 is a prime.

It is a super-2 number, since 2×226156362481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226156362431) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 136484605 + ... + 136486261.

Almost surely, 2^226156362481 is an apocalyptic number.

226156362481 is the 475559-th square number.

226156362481 is the 237780-th centered octagonal number.

It is an amenable number.

226156362481 is a deficient number, since it is larger than the sum of its proper divisors (43659405296).

226156362481 is an frugal number, since it uses more digits than its factorization.

226156362481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410 (or 1705 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 226156362481 in words is "two hundred twenty-six billion, one hundred fifty-six million, three hundred sixty-two thousand, four hundred eighty-one".