140366 has 4 divisors (see below), whose sum is σ = 210552. Its totient is φ = 70182.

The previous prime is 140363. The next prime is 140381. The reversal of 140366 is 663041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 663041 = 151 ⋅4391.

It is a super-2 number, since 2×140366² = 39405227912, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140366.

It is not an unprimeable number, because it can be changed into a prime (140363) by changing a digit.

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, 35090 + ... + 35093.

It is an arithmetic number, because the mean of its divisors is an integer number (52638).

2¹⁴⁰³⁶⁶ is an apocalyptic number.

140366 is a deficient number, since it is larger than the sum of its proper divisors (70186).

140366 is an equidigital number, since it uses as much as digits as its factorization.

140366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70185.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 140366 is about 374.6545075133. The cubic root of 140366 is about 51.9701505217.

The spelling of 140366 in words is "one hundred forty thousand, three hundred sixty-six".