1673140213 has 2 divisors, whose sum is σ = 1673140214. Its totient is φ = 1673140212.

The previous prime is 1673140211. The next prime is 1673140229. The reversal of 1673140213 is 3120413761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1619821009 + 53319204 = 40247^2 + 7302^2 .

It is an emirp because it is prime and its reverse (3120413761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1673140213 - 2¹ = 1673140211 is a prime.

Together with 1673140211, 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 (1673140211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836570106 + 836570107.

It is an arithmetic number, because the mean of its divisors is an integer number (836570107).

Almost surely, 2^1673140213 is an apocalyptic number.

It is an amenable number.

1673140213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673140213 is an equidigital number, since it uses as much as digits as its factorization.

1673140213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1673140213 is about 40904.0366345426. The cubic root of 1673140213 is about 1187.1641659078.

Adding to 1673140213 its reverse (3120413761), we get a palindrome (4793553974).

The spelling of 1673140213 in words is "one billion, six hundred seventy-three million, one hundred forty thousand, two hundred thirteen".