1061530265 has 8 divisors (see below), whose sum is σ = 1274067528. Its totient is φ = 849070080.

The previous prime is 1061530237. The next prime is 1061530273. The reversal of 1061530265 is 5620351601.

It can be written as a sum of positive squares in 4 ways, for example, as 194993296 + 866536969 = 13964^2 + 29437^2 .

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

It is not a de Polignac number, because 1061530265 - 2⁸ = 1061530009 is a prime.

It is a super-2 number, since 2×1061530265² = 2253693007021940450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 17369 + ... + 49241.

It is an arithmetic number, because the mean of its divisors is an integer number (159258441).

Almost surely, 2^1061530265 is an apocalyptic number.

It is an amenable number.

1061530265 is a deficient number, since it is larger than the sum of its proper divisors (212537263).

1061530265 is an equidigital number, since it uses as much as digits as its factorization.

1061530265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38539.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1061530265 is about 32581.1335745090. The cubic root of 1061530265 is about 1020.1032399026.

Adding to 1061530265 its reverse (5620351601), we get a palindrome (6681881866).

The spelling of 1061530265 in words is "one billion, sixty-one million, five hundred thirty thousand, two hundred sixty-five".