140900 has 18 divisors (see below), whose sum is σ = 305970. Its totient is φ = 56320.

The previous prime is 140897. The next prime is 140909. The reversal of 140900 is 9041.

It can be written as a sum of positive squares in 3 ways, for example, as 1024 + 139876 = 32^2 + 374^2 .

It is not an unprimeable number, because it can be changed into a prime (140909) 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 5 ways as a sum of consecutive naturals, for example, 605 + ... + 804.

2¹⁴⁰⁹⁰⁰ is an apocalyptic number.

140900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140900 is an abundant number, since it is smaller than the sum of its proper divisors (165070).

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

140900 is a wasteful number, since it uses less digits than its factorization.

140900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 140900 is about 375.3664875825. The cubic root of 140900 is about 52.0359711663.

Adding to 140900 its reverse (9041), we get a palindrome (149941).

The spelling of 140900 in words is "one hundred forty thousand, nine hundred".