192981493 has 2 divisors, whose sum is σ = 192981494. Its totient is φ = 192981492.

The previous prime is 192981487. The next prime is 192981563. The reversal of 192981493 is 394189291.

It is a happy number.

192981493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162256644 + 30724849 = 12738^2 + 5543^2 .

It is an emirp because it is prime and its reverse (394189291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192981493 - 2¹⁷ = 192850421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192981443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96490746 + 96490747.

It is an arithmetic number, because the mean of its divisors is an integer number (96490747).

Almost surely, 2^192981493 is an apocalyptic number.

It is an amenable number.

192981493 is a deficient number, since it is larger than the sum of its proper divisors (1).

192981493 is an equidigital number, since it uses as much as digits as its factorization.

192981493 is an evil number, because the sum of its binary digits is even.

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

The square root of 192981493 is about 13891.7778919762. Note that the first 3 decimals coincide. The cubic root of 192981493 is about 577.8811840958.

The spelling of 192981493 in words is "one hundred ninety-two million, nine hundred eighty-one thousand, four hundred ninety-three".