368521 has 2 divisors, whose sum is σ = 368522. Its totient is φ = 368520.

The previous prime is 368513. The next prime is 368531. The reversal of 368521 is 125863.

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., 287296 + 81225 = 536^2 + 285^2 .

It is an emirp because it is prime and its reverse (125863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 368521 - 2³ = 368513 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (368531) 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, 184260 + 184261.

It is an arithmetic number, because the mean of its divisors is an integer number (184261).

2³⁶⁸⁵²¹ is an apocalyptic number.

It is an amenable number.

368521 is a deficient number, since it is larger than the sum of its proper divisors (1).

368521 is an equidigital number, since it uses as much as digits as its factorization.

368521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 368521 is about 607.0593051754. The cubic root of 368521 is about 71.6947597331.

The spelling of 368521 in words is "three hundred sixty-eight thousand, five hundred twenty-one".