373213 has 2 divisors, whose sum is σ = 373214. Its totient is φ = 373212.

The previous prime is 373211. The next prime is 373229. The reversal of 373213 is 312373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363609 + 9604 = 603^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 373213 - 2¹ = 373211 is a prime.

Together with 373211, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186606 + 186607.

It is an arithmetic number, because the mean of its divisors is an integer number (186607).

2³⁷³²¹³ is an apocalyptic number.

It is an amenable number.

373213 is a deficient number, since it is larger than the sum of its proper divisors (1).

373213 is an equidigital number, since it uses as much as digits as its factorization.

373213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378, while the sum is 19.

The square root of 373213 is about 610.9116139017. The cubic root of 373213 is about 71.9977494152.

Adding to 373213 its reverse (312373), we get a palindrome (685586).

It can be divided in two parts, 3732 and 13, that multiplied together give a triangular number (48516 = T₃₁₁).

The spelling of 373213 in words is "three hundred seventy-three thousand, two hundred thirteen".