140123878 has 8 divisors (see below), whose sum is σ = 212226768. Its totient is φ = 69381624.

The previous prime is 140123861. The next prime is 140123881. The reversal of 140123878 is 878321041.

It is a happy number.

140123878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339901 + ... + 340312.

It is an arithmetic number, because the mean of its divisors is an integer number (26528346).

Almost surely, 2^140123878 is an apocalyptic number.

140123878 is a deficient number, since it is larger than the sum of its proper divisors (72102890).

140123878 is a wasteful number, since it uses less digits than its factorization.

140123878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680318.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 140123878 is about 11837.3932096556. The cubic root of 140123878 is about 519.4025164129.

The spelling of 140123878 in words is "one hundred forty million, one hundred twenty-three thousand, eight hundred seventy-eight".