226705311 has 30 divisors (see below), whose sum is σ = 393956640. Its totient is φ = 129543624.

The previous prime is 226705309. The next prime is 226705313. The reversal of 226705311 is 113507622.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (226705309) and next prime (226705313).

It is not a de Polignac number, because 226705311 - 2¹ = 226705309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226705313) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 24591 + ... + 32528.

It is an arithmetic number, because the mean of its divisors is an integer number (13131888).

Almost surely, 2^226705311 is an apocalyptic number.

226705311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

226705311 is a deficient number, since it is larger than the sum of its proper divisors (167251329).

226705311 is an equidigital number, since it uses as much as digits as its factorization.

226705311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57145 (or 57129 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 226705311 is about 15056.7363993662. The cubic root of 226705311 is about 609.7529331794.

The spelling of 226705311 in words is "two hundred twenty-six million, seven hundred five thousand, three hundred eleven".