265130653 has 4 divisors (see below), whose sum is σ = 265169088. Its totient is φ = 265092220.

The previous prime is 265130651. The next prime is 265130659. The reversal of 265130653 is 356031562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 356031562 = 2 ⋅178015781.

It is a cyclic number.

It is not a de Polignac number, because 265130653 - 2¹ = 265130651 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265130651) 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 3 ways as a sum of consecutive naturals, for example, 5701 + ... + 23722.

It is an arithmetic number, because the mean of its divisors is an integer number (66292272).

Almost surely, 2^265130653 is an apocalyptic number.

It is an amenable number.

265130653 is a deficient number, since it is larger than the sum of its proper divisors (38435).

265130653 is an equidigital number, since it uses as much as digits as its factorization.

265130653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38434.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 265130653 is about 16282.8330765871. The cubic root of 265130653 is about 642.4213718776.

Subtracting 265130653 from its reverse (356031562), we obtain a palindrome (90900909).

The spelling of 265130653 in words is "two hundred sixty-five million, one hundred thirty thousand, six hundred fifty-three".