226315409 has 2 divisors, whose sum is σ = 226315410. Its totient is φ = 226315408.

The previous prime is 226315399. The next prime is 226315451. The reversal of 226315409 is 904513622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182385025 + 43930384 = 13505^2 + 6628^2 .

It is a cyclic number.

It is not a de Polignac number, because 226315409 - 2⁴ = 226315393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (226315109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113157704 + 113157705.

It is an arithmetic number, because the mean of its divisors is an integer number (113157705).

Almost surely, 2^226315409 is an apocalyptic number.

It is an amenable number.

226315409 is a deficient number, since it is larger than the sum of its proper divisors (1).

226315409 is an equidigital number, since it uses as much as digits as its factorization.

226315409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 226315409 is about 15043.7830680983. The cubic root of 226315409 is about 609.4031688193.

The spelling of 226315409 in words is "two hundred twenty-six million, three hundred fifteen thousand, four hundred nine".