193113442 has 4 divisors (see below), whose sum is σ = 289670166. Its totient is φ = 96556720.

The previous prime is 193113439. The next prime is 193113449. The reversal of 193113442 is 244311391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118135161 + 74978281 = 10869^2 + 8659^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 193113442.

It is not an unprimeable number, because it can be changed into a prime (193113449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48278359 + ... + 48278362.

Almost surely, 2^193113442 is an apocalyptic number.

193113442 is a deficient number, since it is larger than the sum of its proper divisors (96556724).

193113442 is an equidigital number, since it uses as much as digits as its factorization.

193113442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96556723.

The product of its digits is 2592, while the sum is 28.

The square root of 193113442 is about 13896.5262565866. The cubic root of 193113442 is about 578.0128607508.

The spelling of 193113442 in words is "one hundred ninety-three million, one hundred thirteen thousand, four hundred forty-two".