140498 has 4 divisors (see below), whose sum is σ = 210750. Its totient is φ = 70248.

The previous prime is 140477. The next prime is 140521. The reversal of 140498 is 894041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 894041 = 29 ⋅30829.

It can be written as a sum of positive squares in only one way, i.e., 139129 + 1369 = 373^2 + 37^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35123 + ... + 35126.

2¹⁴⁰⁴⁹⁸ is an apocalyptic number.

140498 is a deficient number, since it is larger than the sum of its proper divisors (70252).

140498 is an equidigital number, since it uses as much as digits as its factorization.

140498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70251.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 140498 is about 374.8306284177. The cubic root of 140498 is about 51.9864363046.

The spelling of 140498 in words is "one hundred forty thousand, four hundred ninety-eight".