1073021265 has 24 divisors (see below), whose sum is σ = 1872397800. Its totient is φ = 568433664.

The previous prime is 1073021239. The next prime is 1073021267. The reversal of 1073021265 is 5621203701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59490369 + 1013530896 = 7713^2 + 31836^2 .

It is not a de Polignac number, because 1073021265 - 2¹⁰ = 1073020241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1073021267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73312 + ... + 86721.

It is an arithmetic number, because the mean of its divisors is an integer number (78016575).

Almost surely, 2^1073021265 is an apocalyptic number.

1073021265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1073021265 is a deficient number, since it is larger than the sum of its proper divisors (799376535).

1073021265 is a wasteful number, since it uses less digits than its factorization.

1073021265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160193 (or 160190 counting only the distinct ones).

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

The square root of 1073021265 is about 32757.0032970051. The cubic root of 1073021265 is about 1023.7708892051.

Adding to 1073021265 its reverse (5621203701), we get a palindrome (6694224966).

The spelling of 1073021265 in words is "one billion, seventy-three million, twenty-one thousand, two hundred sixty-five".