100742 has 8 divisors (see below), whose sum is σ = 160056. Its totient is φ = 47392.

The previous prime is 100741. The next prime is 100747. The reversal of 100742 is 247001.

It is a happy number.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 100742.

It is not an unprimeable number, because it can be changed into a prime (100741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448 + ... + 1515.

It is an arithmetic number, because the mean of its divisors is an integer number (20007).

2¹⁰⁰⁷⁴² is an apocalyptic number.

100742 is a deficient number, since it is larger than the sum of its proper divisors (59314).

100742 is a wasteful number, since it uses less digits than its factorization.

100742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 100742 is about 317.3988027703. The cubic root of 100742 is about 46.5304075211.

Adding to 100742 its reverse (247001), we get a palindrome (347743).

The spelling of 100742 in words is "one hundred thousand, seven hundred forty-two", and thus it is an iban number.