367561 has 2 divisors, whose sum is σ = 367562. Its totient is φ = 367560.

The previous prime is 367559. The next prime is 367573. The reversal of 367561 is 165763.

367561 is nontrivially palindromic in base 13.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 59536 = 555^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 367561 - 2¹ = 367559 is a prime.

Together with 367559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (367501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183780 + 183781.

It is an arithmetic number, because the mean of its divisors is an integer number (183781).

2³⁶⁷⁵⁶¹ is an apocalyptic number.

It is an amenable number.

367561 is a deficient number, since it is larger than the sum of its proper divisors (1).

367561 is an equidigital number, since it uses as much as digits as its factorization.

367561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 367561 is about 606.2680925135. The cubic root of 367561 is about 71.6324504654.

The spelling of 367561 in words is "three hundred sixty-seven thousand, five hundred sixty-one".