364256261 has 2 divisors, whose sum is σ = 364256262. Its totient is φ = 364256260.

The previous prime is 364256257. The next prime is 364256339. The reversal of 364256261 is 162652463.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363664900 + 591361 = 19070^2 + 769^2 .

It is a cyclic number.

It is not a de Polignac number, because 364256261 - 2² = 364256257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (364256561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182128130 + 182128131.

It is an arithmetic number, because the mean of its divisors is an integer number (182128131).

Almost surely, 2^364256261 is an apocalyptic number.

It is an amenable number.

364256261 is a deficient number, since it is larger than the sum of its proper divisors (1).

364256261 is an equidigital number, since it uses as much as digits as its factorization.

364256261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 364256261 is about 19085.4987097534. The cubic root of 364256261 is about 714.1712150240.

The spelling of 364256261 in words is "three hundred sixty-four million, two hundred fifty-six thousand, two hundred sixty-one".