1674161213 has 4 divisors (see below), whose sum is σ = 1731890940. Its totient is φ = 1616431488.

The previous prime is 1674161171. The next prime is 1674161219. The reversal of 1674161213 is 3121614761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 536987929 + 1137173284 = 23173^2 + 33722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1674161213 - 2¹² = 1674157117 is a prime.

It is a super-3 number, since 3×1674161213³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1674161213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1674161219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28864820 + ... + 28864877.

It is an arithmetic number, because the mean of its divisors is an integer number (432972735).

Almost surely, 2^1674161213 is an apocalyptic number.

It is an amenable number.

1674161213 is a deficient number, since it is larger than the sum of its proper divisors (57729727).

1674161213 is an equidigital number, since it uses as much as digits as its factorization.

1674161213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57729726.

The product of its digits is 6048, while the sum is 32.

The square root of 1674161213 is about 40916.5151619734. The cubic root of 1674161213 is about 1187.4055977846.

Adding to 1674161213 its reverse (3121614761), we get a palindrome (4795775974).

The spelling of 1674161213 in words is "one billion, six hundred seventy-four million, one hundred sixty-one thousand, two hundred thirteen".