140479 has 4 divisors (see below), whose sum is σ = 142920. Its totient is φ = 138040.

The previous prime is 140477. The next prime is 140521. The reversal of 140479 is 974041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140479 - 2¹ = 140477 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140473) 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, 1132 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (35730).

2¹⁴⁰⁴⁷⁹ is an apocalyptic number.

140479 is a deficient number, since it is larger than the sum of its proper divisors (2441).

140479 is an equidigital number, since it uses as much as digits as its factorization.

140479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 140479 is about 374.8052827803. The cubic root of 140479 is about 51.9840927675.

The spelling of 140479 in words is "one hundred forty thousand, four hundred seventy-nine".