140335979 has 8 divisors (see below), whose sum is σ = 160627680. Its totient is φ = 120105216.

The previous prime is 140335967. The next prime is 140335981. The reversal of 140335979 is 979533041.

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

It is not a de Polignac number, because 140335979 - 2⁴ = 140335963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140335939) 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, 10184 + ... + 19605.

It is an arithmetic number, because the mean of its divisors is an integer number (20078460).

Almost surely, 2^140335979 is an apocalyptic number.

140335979 is a deficient number, since it is larger than the sum of its proper divisors (20291701).

140335979 is an equidigital number, since it uses as much as digits as its factorization.

140335979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30469.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 140335979 is about 11846.3487623824. The cubic root of 140335979 is about 519.6644519150.

The spelling of 140335979 in words is "one hundred forty million, three hundred thirty-five thousand, nine hundred seventy-nine".