19102 has 4 divisors (see below), whose sum is σ = 28656. Its totient is φ = 9550.

The previous prime is 19087. The next prime is 19121. The reversal of 19102 is 20191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20191 = 61 ⋅331.

It is a congruent number.

It is an unprimeable number.

19102 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4774 + ... + 4777.

It is an arithmetic number, because the mean of its divisors is an integer number (7164).

2¹⁹¹⁰² is an apocalyptic number.

19102 is a deficient number, since it is larger than the sum of its proper divisors (9554).

19102 is an equidigital number, since it uses as much as digits as its factorization.

19102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9553.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 19102 is about 138.2099851675. The cubic root of 19102 is about 26.7316816385.

Adding to 19102 its reverse (20191), we get a palindrome (39293).

Subtracting 19102 from its reverse (20191), we obtain a square (1089 = 33²).

It can be divided in two parts, 19 and 102, that added together give a palindrome (121).

The spelling of 19102 in words is "nineteen thousand, one hundred two".