140066679 has 8 divisors (see below), whose sum is σ = 186820480. Its totient is φ = 93345336.

The previous prime is 140066671. The next prime is 140066681. The reversal of 140066679 is 976660041.

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

It is not a de Polignac number, because 140066679 - 2³ = 140066671 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 (140066671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4974 + ... + 17460.

It is an arithmetic number, because the mean of its divisors is an integer number (23352560).

Almost surely, 2^140066679 is an apocalyptic number.

140066679 is a deficient number, since it is larger than the sum of its proper divisors (46753801).

140066679 is a wasteful number, since it uses less digits than its factorization.

140066679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16229.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 140066679 is about 11834.9769328039. The cubic root of 140066679 is about 519.3318328902.

The spelling of 140066679 in words is "one hundred forty million, sixty-six thousand, six hundred seventy-nine".