140456 has 16 divisors (see below), whose sum is σ = 267540. Its totient is φ = 69120.

The previous prime is 140453. The next prime is 140473. The reversal of 140456 is 654041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122500 + 17956 = 350^2 + 134^2 .

It is not an unprimeable number, because it can be changed into a prime (140453) 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, 686 + ... + 866.

2¹⁴⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

140456 is a deficient number, since it is larger than the sum of its proper divisors (127084).

140456 is a wasteful number, since it uses less digits than its factorization.

140456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140456 is about 374.7745989258. The cubic root of 140456 is about 51.9812555714.

Adding to 140456 its reverse (654041), we get a palindrome (794497).

The spelling of 140456 in words is "one hundred forty thousand, four hundred fifty-six".