1265227338 has 8 divisors (see below), whose sum is σ = 2530454688. Its totient is φ = 421742444.

The previous prime is 1265227331. The next prime is 1265227343. The reversal of 1265227338 is 8337225621.

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

1265227338 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1265227296 and 1265227305.

It is not an unprimeable number, because it can be changed into a prime (1265227331) 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, 105435606 + ... + 105435617.

It is an arithmetic number, because the mean of its divisors is an integer number (316306836).

Almost surely, 2^1265227338 is an apocalyptic number.

1265227338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265227338 is a wasteful number, since it uses less digits than its factorization.

1265227338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210871228.

The product of its digits is 120960, while the sum is 39.

The square root of 1265227338 is about 35570.0342704361. The cubic root of 1265227338 is about 1081.5738764116.

The spelling of 1265227338 in words is "one billion, two hundred sixty-five million, two hundred twenty-seven thousand, three hundred thirty-eight".