265135001 has 2 divisors, whose sum is σ = 265135002. Its totient is φ = 265135000.

The previous prime is 265134997. The next prime is 265135019. The reversal of 265135001 is 100531562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139806976 + 125328025 = 11824^2 + 11195^2 .

It is a cyclic number.

It is not a de Polignac number, because 265135001 - 2² = 265134997 is a prime.

It is not a weakly prime, because it can be changed into another prime (265135061) 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 as a sum of consecutive naturals, namely, 132567500 + 132567501.

It is an arithmetic number, because the mean of its divisors is an integer number (132567501).

Almost surely, 2^265135001 is an apocalyptic number.

It is an amenable number.

265135001 is a deficient number, since it is larger than the sum of its proper divisors (1).

265135001 is an equidigital number, since it uses as much as digits as its factorization.

265135001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 265135001 is about 16282.9665908888. The cubic root of 265135001 is about 642.4248836466.

Adding to 265135001 its reverse (100531562), we get a palindrome (365666563).

The spelling of 265135001 in words is "two hundred sixty-five million, one hundred thirty-five thousand, one".