192918493 has 4 divisors (see below), whose sum is σ = 193547200. Its totient is φ = 192289788.

The previous prime is 192918491. The next prime is 192918497. The reversal of 192918493 is 394819291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394819291 = 103 ⋅3833197.

It is a cyclic number.

It is not a de Polignac number, because 192918493 - 2¹ = 192918491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192918491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313893 + ... + 314506.

It is an arithmetic number, because the mean of its divisors is an integer number (48386800).

Almost surely, 2^192918493 is an apocalyptic number.

It is an amenable number.

192918493 is a deficient number, since it is larger than the sum of its proper divisors (628707).

192918493 is an equidigital number, since it uses as much as digits as its factorization.

192918493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628706.

The product of its digits is 139968, while the sum is 46.

The square root of 192918493 is about 13889.5101785484. The cubic root of 192918493 is about 577.8182929580.

The spelling of 192918493 in words is "one hundred ninety-two million, nine hundred eighteen thousand, four hundred ninety-three".