265241154620249 has 2 divisors, whose sum is σ = 265241154620250. Its totient is φ = 265241154620248.

The previous prime is 265241154620213. The next prime is 265241154620297. The reversal of 265241154620249 is 942026451142562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162923984732224 + 102317169888025 = 12764168^2 + 10115195^2 .

It is a cyclic number.

It is not a de Polignac number, because 265241154620249 - 2¹² = 265241154616153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265241154620249.

It is not a weakly prime, because it can be changed into another prime (265241154620749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132620577310124 + 132620577310125.

It is an arithmetic number, because the mean of its divisors is an integer number (132620577310125).

Almost surely, 2^{265241154620249} is an apocalyptic number.

It is an amenable number.

265241154620249 is a deficient number, since it is larger than the sum of its proper divisors (1).

265241154620249 is an equidigital number, since it uses as much as digits as its factorization.

265241154620249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 265241154620249 in words is "two hundred sixty-five trillion, two hundred forty-one billion, one hundred fifty-four million, six hundred twenty thousand, two hundred forty-nine".