141640 has 16 divisors (see below), whose sum is σ = 318780. Its totient is φ = 56640.

The previous prime is 141637. The next prime is 141649. The reversal of 141640 is 46141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 1764 = 374^2 + 42^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (141649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731 + ... + 1810.

2¹⁴¹⁶⁴⁰ is an apocalyptic number.

141640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141640 is an abundant number, since it is smaller than the sum of its proper divisors (177140).

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

141640 is a wasteful number, since it uses less digits than its factorization.

141640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 141640 is about 376.3509000919. The cubic root of 141640 is about 52.1269089544.

Adding to 141640 its reverse (46141), we get a palindrome (187781).

The spelling of 141640 in words is "one hundred forty-one thousand, six hundred forty".