140455 has 8 divisors (see below), whose sum is σ = 192672. Its totient is φ = 96288.

The previous prime is 140453. The next prime is 140473. The reversal of 140455 is 554041.

140455 = T₁₀₅ + T₁₀₆ + ... + T₁₂₅.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140455 - 2¹ = 140453 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1972 + ... + 2041.

It is an arithmetic number, because the mean of its divisors is an integer number (24084).

2¹⁴⁰⁴⁵⁵ is an apocalyptic number.

140455 is a deficient number, since it is larger than the sum of its proper divisors (52217).

140455 is an equidigital number, since it uses as much as digits as its factorization.

140455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 140455 is about 374.7732647882. The cubic root of 140455 is about 51.9811322081.

Adding to 140455 its reverse (554041), we get a palindrome (694496).

It can be divided in two parts, 14045 and 5, that multiplied together give a square (70225 = 265²).

The spelling of 140455 in words is "one hundred forty thousand, four hundred fifty-five".