140878 has 4 divisors (see below), whose sum is σ = 211320. Its totient is φ = 70438.

The previous prime is 140869. The next prime is 140891. The reversal of 140878 is 878041.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×140878² = 39693221768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35218 + ... + 35221.

It is an arithmetic number, because the mean of its divisors is an integer number (52830).

2¹⁴⁰⁸⁷⁸ is an apocalyptic number.

140878 is a deficient number, since it is larger than the sum of its proper divisors (70442).

140878 is an equidigital number, since it uses as much as digits as its factorization.

140878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70441.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 140878 is about 375.3371817446. The cubic root of 140878 is about 52.0332627420.

The spelling of 140878 in words is "one hundred forty thousand, eight hundred seventy-eight".