193942111 has 16 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 169708000.

The previous prime is 193942097. The next prime is 193942157. The reversal of 193942111 is 111249391.

It is not a de Polignac number, because 193942111 - 2¹³ = 193933919 is a prime.

It is a super-2 number, since 2×193942111² = 75227084838272642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193942181) 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 in 15 ways as a sum of consecutive naturals, for example, 132936 + ... + 134386.

It is an arithmetic number, because the mean of its divisors is an integer number (13721400).

Almost surely, 2^193942111 is an apocalyptic number.

193942111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

193942111 is a deficient number, since it is larger than the sum of its proper divisors (25600289).

193942111 is a wasteful number, since it uses less digits than its factorization.

193942111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its digits is 1944, while the sum is 31.

The square root of 193942111 is about 13926.3100281446. The cubic root of 193942111 is about 578.8384512157.

The spelling of 193942111 in words is "one hundred ninety-three million, nine hundred forty-two thousand, one hundred eleven".