226131001 has 4 divisors (see below), whose sum is σ = 226177252. Its totient is φ = 226084752.

The previous prime is 226130987. The next prime is 226131043. The reversal of 226131001 is 100131622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160909225 + 65221776 = 12685^2 + 8076^2 .

It is a cyclic number.

It is not a de Polignac number, because 226131001 - 2⁵ = 226130969 is a prime.

It is a super-2 number, since 2×226131001² = 102270459226524002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226131091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14790 + ... + 25903.

It is an arithmetic number, because the mean of its divisors is an integer number (56544313).

Almost surely, 2^226131001 is an apocalyptic number.

It is an amenable number.

226131001 is a deficient number, since it is larger than the sum of its proper divisors (46251).

226131001 is an equidigital number, since it uses as much as digits as its factorization.

226131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46250.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 226131001 is about 15037.6527756163. The cubic root of 226131001 is about 609.2376043724.

Adding to 226131001 its reverse (100131622), we get a palindrome (326262623).

The spelling of 226131001 in words is "two hundred twenty-six million, one hundred thirty-one thousand, one".