193442519 has 2 divisors, whose sum is σ = 193442520. Its totient is φ = 193442518.

The previous prime is 193442461. The next prime is 193442563. The reversal of 193442519 is 915244391.

It is a strong prime.

It is an emirp because it is prime and its reverse (915244391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193442519 - 2¹⁶ = 193376983 is a prime.

It is a super-2 number, since 2×193442519² = 74840016314130722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193442569) 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 as a sum of consecutive naturals, namely, 96721259 + 96721260.

It is an arithmetic number, because the mean of its divisors is an integer number (96721260).

Almost surely, 2^193442519 is an apocalyptic number.

193442519 is a deficient number, since it is larger than the sum of its proper divisors (1).

193442519 is an equidigital number, since it uses as much as digits as its factorization.

193442519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The square root of 193442519 is about 13908.3614779024. The cubic root of 193442519 is about 578.3409974060.

The spelling of 193442519 in words is "one hundred ninety-three million, four hundred forty-two thousand, five hundred nineteen".