140493 has 4 divisors (see below), whose sum is σ = 187328. Its totient is φ = 93660.

The previous prime is 140477. The next prime is 140521. The reversal of 140493 is 394041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140493 - 2⁴ = 140477 is a prime.

It is a D-number.

It is a Duffinian number.

140493 is a lucky number.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140423) 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, 23413 + ... + 23418.

It is an arithmetic number, because the mean of its divisors is an integer number (46832).

2¹⁴⁰⁴⁹³ is an apocalyptic number.

It is an amenable number.

140493 is a deficient number, since it is larger than the sum of its proper divisors (46835).

140493 is an equidigital number, since it uses as much as digits as its factorization.

140493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46834.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 140493 is about 374.8239586793. The cubic root of 140493 is about 51.9858196048.

The spelling of 140493 in words is "one hundred forty thousand, four hundred ninety-three".