226308139 has 4 divisors (see below), whose sum is σ = 226351800. Its totient is φ = 226264480.

The previous prime is 226308119. The next prime is 226308143. The reversal of 226308139 is 931803622.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 226308139 - 2¹⁷ = 226177067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226308119) 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, 12814 + ... + 24835.

It is an arithmetic number, because the mean of its divisors is an integer number (56587950).

Almost surely, 2^226308139 is an apocalyptic number.

226308139 is a deficient number, since it is larger than the sum of its proper divisors (43661).

226308139 is an equidigital number, since it uses as much as digits as its factorization.

226308139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43660.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 226308139 is about 15043.5414381056. The cubic root of 226308139 is about 609.3966434005.

The spelling of 226308139 in words is "two hundred twenty-six million, three hundred eight thousand, one hundred thirty-nine".