140078 has 4 divisors (see below), whose sum is σ = 210120. Its totient is φ = 70038.

The previous prime is 140071. The next prime is 140111. The reversal of 140078 is 870041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870041 = 103 ⋅8447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140071) by changing a digit.

140078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35018 + ... + 35021.

It is an arithmetic number, because the mean of its divisors is an integer number (52530).

2¹⁴⁰⁰⁷⁸ is an apocalyptic number.

140078 is a deficient number, since it is larger than the sum of its proper divisors (70042).

140078 is an equidigital number, since it uses as much as digits as its factorization.

140078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70041.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 140078 is about 374.2699560478. The cubic root of 140078 is about 51.9345824315.

The spelling of 140078 in words is "one hundred forty thousand, seventy-eight".