140542079 has 8 divisors (see below), whose sum is σ = 143909568. Its totient is φ = 137190400.

The previous prime is 140542063. The next prime is 140542097. The reversal of 140542079 is 970245041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140542079 - 2⁴ = 140542063 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 (140542049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15119 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (17988696).

Almost surely, 2^140542079 is an apocalyptic number.

140542079 is a deficient number, since it is larger than the sum of its proper divisors (3367489).

140542079 is an equidigital number, since it uses as much as digits as its factorization.

140542079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 140542079 is about 11855.0444537336. The cubic root of 140542079 is about 519.9187237370.

The spelling of 140542079 in words is "one hundred forty million, five hundred forty-two thousand, seventy-nine".