19952193 has 4 divisors (see below), whose sum is σ = 26602928. Its totient is φ = 13301460.

The previous prime is 19952171. The next prime is 19952197. The reversal of 19952193 is 39125991.

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: 39125991 = 3 ⋅13041997.

It is not a de Polignac number, because 19952193 - 2¹⁸ = 19690049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19952197) 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, 3325363 + ... + 3325368.

It is an arithmetic number, because the mean of its divisors is an integer number (6650732).

Almost surely, 2^19952193 is an apocalyptic number.

It is an amenable number.

19952193 is a deficient number, since it is larger than the sum of its proper divisors (6650735).

19952193 is an equidigital number, since it uses as much as digits as its factorization.

19952193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650734.

The product of its digits is 21870, while the sum is 39.

The square root of 19952193 is about 4466.7877719901. The cubic root of 19952193 is about 271.2253088301.

The spelling of 19952193 in words is "nineteen million, nine hundred fifty-two thousand, one hundred ninety-three".