1265622226 has 8 divisors (see below), whose sum is σ = 2071018224. Its totient is φ = 575282820.

The previous prime is 1265622223. The next prime is 1265622229. The reversal of 1265622226 is 6222265621.

It is an interprime number because it is at equal distance from previous prime (1265622223) and next prime (1265622229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1265622191 and 1265622200.

It is not an unprimeable number, because it can be changed into a prime (1265622223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28764120 + ... + 28764163.

It is an arithmetic number, because the mean of its divisors is an integer number (258877278).

Almost surely, 2^1265622226 is an apocalyptic number.

1265622226 is a deficient number, since it is larger than the sum of its proper divisors (805395998).

1265622226 is a wasteful number, since it uses less digits than its factorization.

1265622226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57528296.

The product of its digits is 34560, while the sum is 34.

The square root of 1265622226 is about 35575.5846895030. The cubic root of 1265622226 is about 1081.6863874484.

Adding to 1265622226 its reverse (6222265621), we get a palindrome (7487887847).

The spelling of 1265622226 in words is "one billion, two hundred sixty-five million, six hundred twenty-two thousand, two hundred twenty-six".