193742 has 8 divisors (see below), whose sum is σ = 294816. Its totient is φ = 95472.

The previous prime is 193741. The next prime is 193751. The reversal of 193742 is 247391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193741) 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, 518 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (36852).

193742 is a Friedman number, since it can be written as 21^4-739, using all its digits and the basic arithmetic operations.

2¹⁹³⁷⁴² is an apocalyptic number.

193742 is a deficient number, since it is larger than the sum of its proper divisors (101074).

193742 is a wasteful number, since it uses less digits than its factorization.

193742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 1512, while the sum is 26.

The square root of 193742 is about 440.1613340583. The cubic root of 193742 is about 57.8639299344.

The spelling of 193742 in words is "one hundred ninety-three thousand, seven hundred forty-two".