227148769 has 4 divisors (see below), whose sum is σ = 227673796. Its totient is φ = 226623744.

The previous prime is 227148767. The next prime is 227148787. The reversal of 227148769 is 967841722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42732369 + 184416400 = 6537^2 + 13580^2 .

It is a cyclic number.

It is not a de Polignac number, because 227148769 - 2¹ = 227148767 is a prime.

It is a super-2 number, since 2×227148769² = 103193126516430722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227148767) 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, 261864 + ... + 262729.

It is an arithmetic number, because the mean of its divisors is an integer number (56918449).

Almost surely, 2^227148769 is an apocalyptic number.

It is an amenable number.

227148769 is a deficient number, since it is larger than the sum of its proper divisors (525027).

227148769 is an equidigital number, since it uses as much as digits as its factorization.

227148769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525026.

The product of its digits is 338688, while the sum is 46.

The square root of 227148769 is about 15071.4554373491. The cubic root of 227148769 is about 610.1502532316.

It can be divided in two parts, 2271 and 48769, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 227148769 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, seven hundred sixty-nine".