102742 has 8 divisors (see below), whose sum is σ = 157536. Its totient is φ = 50232.

The previous prime is 102701. The next prime is 102761. The reversal of 102742 is 247201.

102742 is nontrivially palindromic in base 3.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453 + ... + 640.

It is an arithmetic number, because the mean of its divisors is an integer number (19692).

2¹⁰²⁷⁴² is an apocalyptic number.

102742 is a deficient number, since it is larger than the sum of its proper divisors (54794).

102742 is a wasteful number, since it uses less digits than its factorization.

102742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 102742 is about 320.5339295613. The cubic root of 102742 is about 46.8363100005.

Adding to 102742 its reverse (247201), we get a palindrome (349943).

It can be divided in two parts, 1027 and 42, that multiplied together give a palindrome (43134).

The spelling of 102742 in words is "one hundred two thousand, seven hundred forty-two", and thus it is an iban number.