1265054330 has 16 divisors (see below), whose sum is σ = 2279698344. Its totient is φ = 505443840.

The previous prime is 1265054317. The next prime is 1265054339. The reversal of 1265054330 is 334505621.

It can be written as a sum of positive squares in 4 ways, for example, as 398281849 + 866772481 = 19957^2 + 29441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1265054293 and 1265054302.

It is not an unprimeable number, because it can be changed into a prime (1265054339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62987 + ... + 80606.

Almost surely, 2^1265054330 is an apocalyptic number.

1265054330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265054330 is a deficient number, since it is larger than the sum of its proper divisors (1014644014).

1265054330 is a wasteful number, since it uses less digits than its factorization.

1265054330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144481.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1265054330 is about 35567.6022526119. The cubic root of 1265054330 is about 1081.5245757953.

Adding to 1265054330 its reverse (334505621), we get a palindrome (1599559951).

The spelling of 1265054330 in words is "one billion, two hundred sixty-five million, fifty-four thousand, three hundred thirty".