140102 has 4 divisors (see below), whose sum is σ = 210156. Its totient is φ = 70050.

The previous prime is 140071. The next prime is 140111. The reversal of 140102 is 201041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201041 = 127 ⋅1583.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 140102.

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 140102.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35024 + ... + 35027.

It is an arithmetic number, because the mean of its divisors is an integer number (52539).

2¹⁴⁰¹⁰² is an apocalyptic number.

140102 is a deficient number, since it is larger than the sum of its proper divisors (70054).

140102 is an equidigital number, since it uses as much as digits as its factorization.

140102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70053.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 140102 is about 374.3020170931. The cubic root of 140102 is about 51.9375483001.

Adding to 140102 its reverse (201041), we get a palindrome (341143).

It can be divided in two parts, 140 and 102, that added together give a palindrome (242).

The spelling of 140102 in words is "one hundred forty thousand, one hundred two", and thus it is an iban number.