361213 has 2 divisors, whose sum is σ = 361214. Its totient is φ = 361212.

The previous prime is 361211. The next prime is 361217. The reversal of 361213 is 312163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315844 + 45369 = 562^2 + 213^2 .

It is a cyclic number.

It is not a de Polignac number, because 361213 - 2¹ = 361211 is a prime.

Together with 361211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361211) 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, 180606 + 180607.

It is an arithmetic number, because the mean of its divisors is an integer number (180607).

2³⁶¹²¹³ is an apocalyptic number.

It is an amenable number.

361213 is a deficient number, since it is larger than the sum of its proper divisors (1).

361213 is an equidigital number, since it uses as much as digits as its factorization.

361213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 16.

The square root of 361213 is about 601.0099832781. The cubic root of 361213 is about 71.2176748823.

Adding to 361213 its reverse (312163), we get a palindrome (673376).

It can be divided in two parts, 3 and 61213, that added together give a palindrome (61216).

The spelling of 361213 in words is "three hundred sixty-one thousand, two hundred thirteen".