226389131 has 2 divisors, whose sum is σ = 226389132. Its totient is φ = 226389130.

The previous prime is 226389127. The next prime is 226389139. The reversal of 226389131 is 131983622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226389131 - 2² = 226389127 is a prime.

It is a super-2 number, since 2×226389131² = 102504077269870322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 226389091 and 226389100.

It is not a weakly prime, because it can be changed into another prime (226389139) 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 as a sum of consecutive naturals, namely, 113194565 + 113194566.

It is an arithmetic number, because the mean of its divisors is an integer number (113194566).

Almost surely, 2^226389131 is an apocalyptic number.

226389131 is a deficient number, since it is larger than the sum of its proper divisors (1).

226389131 is an equidigital number, since it uses as much as digits as its factorization.

226389131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 226389131 is about 15046.2331166309. The cubic root of 226389131 is about 609.4693324435.

The spelling of 226389131 in words is "two hundred twenty-six million, three hundred eighty-nine thousand, one hundred thirty-one".