193955 has 4 divisors (see below), whose sum is σ = 232752. Its totient is φ = 155160.

The previous prime is 193951. The next prime is 193957. The reversal of 193955 is 559391.

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

It is not a de Polignac number, because 193955 - 2² = 193951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19391 + ... + 19400.

It is an arithmetic number, because the mean of its divisors is an integer number (58188).

2¹⁹³⁹⁵⁵ is an apocalyptic number.

193955 is a deficient number, since it is larger than the sum of its proper divisors (38797).

193955 is an equidigital number, since it uses as much as digits as its factorization.

193955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38796.

The product of its digits is 6075, while the sum is 32.

The square root of 193955 is about 440.4032243297. The cubic root of 193955 is about 57.8851273742.

The spelling of 193955 in words is "one hundred ninety-three thousand, nine hundred fifty-five".