140920 has 32 divisors (see below), whose sum is σ = 342720. Its totient is φ = 51840.

The previous prime is 140909. The next prime is 140929. The reversal of 140920 is 29041.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 140894 and 140903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140929) by changing a digit.

140920 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 in 7 ways as a sum of consecutive naturals, for example, 385 + ... + 655.

It is an arithmetic number, because the mean of its divisors is an integer number (10710).

2¹⁴⁰⁹²⁰ is an apocalyptic number.

140920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171360).

140920 is an abundant number, since it is smaller than the sum of its proper divisors (201800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140920 is a wasteful number, since it uses less digits than its factorization.

140920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 140920 is about 375.3931272679. The cubic root of 140920 is about 52.0384331256.

Adding to 140920 its reverse (29041), we get a palindrome (169961).

The spelling of 140920 in words is "one hundred forty thousand, nine hundred twenty".