140090879 has 8 divisors (see below), whose sum is σ = 143320320. Its totient is φ = 136871896.

The previous prime is 140090827. The next prime is 140090911. The reversal of 140090879 is 978090041.

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

It is not a de Polignac number, because 140090879 - 2⁸ = 140090623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140090479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28712 + ... + 33234.

It is an arithmetic number, because the mean of its divisors is an integer number (17915040).

Almost surely, 2^140090879 is an apocalyptic number.

140090879 is a deficient number, since it is larger than the sum of its proper divisors (3229441).

140090879 is an equidigital number, since it uses as much as digits as its factorization.

140090879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 140090879 is about 11835.9992818520. Note that the first 3 decimals coincide. The cubic root of 140090879 is about 519.3617403284.

The spelling of 140090879 in words is "one hundred forty million, ninety thousand, eight hundred seventy-nine".