140299 has 4 divisors (see below), whose sum is σ = 141064. Its totient is φ = 139536.

The previous prime is 140297. The next prime is 140317. The reversal of 140299 is 992041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 992041 = 509 ⋅1949.

It is a cyclic number.

It is not a de Polignac number, because 140299 - 2¹ = 140297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140297) 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, 79 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (35266).

2¹⁴⁰²⁹⁹ is an apocalyptic number.

140299 is a deficient number, since it is larger than the sum of its proper divisors (765).

140299 is an equidigital number, since it uses as much as digits as its factorization.

140299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 140299 is about 374.5650811274. The cubic root of 140299 is about 51.9618803465.

The spelling of 140299 in words is "one hundred forty thousand, two hundred ninety-nine".