36145221269 has 2 divisors, whose sum is σ = 36145221270. Its totient is φ = 36145221268.

The previous prime is 36145221253. The next prime is 36145221293. The reversal of 36145221269 is 96212254163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33806338225 + 2338883044 = 183865^2 + 48362^2 .

It is an emirp because it is prime and its reverse (96212254163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36145221269 - 2⁴ = 36145221253 is a prime.

It is a super-2 number, since 2×36145221269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36145220269) 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, 18072610634 + 18072610635.

It is an arithmetic number, because the mean of its divisors is an integer number (18072610635).

Almost surely, 2^36145221269 is an apocalyptic number.

It is an amenable number.

36145221269 is a deficient number, since it is larger than the sum of its proper divisors (1).

36145221269 is an equidigital number, since it uses as much as digits as its factorization.

36145221269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The spelling of 36145221269 in words is "thirty-six billion, one hundred forty-five million, two hundred twenty-one thousand, two hundred sixty-nine".