1993164213 has 16 divisors (see below), whose sum is σ = 2679969152. Its totient is φ = 1317600000.

The previous prime is 1993164169. The next prime is 1993164223. The reversal of 1993164213 is 3124613991.

It is a happy number.

It is not a de Polignac number, because 1993164213 - 2⁶ = 1993164149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993164223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268593 + ... + 275913.

It is an arithmetic number, because the mean of its divisors is an integer number (167498072).

Almost surely, 2^1993164213 is an apocalyptic number.

It is an amenable number.

1993164213 is a deficient number, since it is larger than the sum of its proper divisors (686804939).

1993164213 is a wasteful number, since it uses less digits than its factorization.

1993164213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076.

The product of its digits is 34992, while the sum is 39.

The square root of 1993164213 is about 44644.8677117538. The cubic root of 1993164213 is about 1258.4839860832.

The spelling of 1993164213 in words is "one billion, nine hundred ninety-three million, one hundred sixty-four thousand, two hundred thirteen".