226381139 has 2 divisors, whose sum is σ = 226381140. Its totient is φ = 226381138.

The previous prime is 226381123. The next prime is 226381147. The reversal of 226381139 is 931183622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226381139 - 2⁴ = 226381123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226381099 and 226381108.

It is not a weakly prime, because it can be changed into another prime (226381109) 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, 113190569 + 113190570.

It is an arithmetic number, because the mean of its divisors is an integer number (113190570).

Almost surely, 2^226381139 is an apocalyptic number.

226381139 is a deficient number, since it is larger than the sum of its proper divisors (1).

226381139 is an equidigital number, since it uses as much as digits as its factorization.

226381139 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 226381139 is about 15045.9675328641. The cubic root of 226381139 is about 609.4621605206.

The spelling of 226381139 in words is "two hundred twenty-six million, three hundred eighty-one thousand, one hundred thirty-nine".